66934001 has 4 divisors (see below), whose sum is σ = 69242100. Its totient is φ = 64625904.

The previous prime is 66933983. The next prime is 66934027. The reversal of 66934001 is 10043966.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10043966 = 2 ⋅5021983.

It can be written as a sum of positive squares in 2 ways, for example, as 37503376 + 29430625 = 6124^2 + 5425^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66934001 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29), and also a Moran number because the ratio is a prime number: 2308069 = 66934001 / (6 + 6 + 9 + 3 + 4 + 0 + 0 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66934051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1154006 + ... + 1154063.

It is an arithmetic number, because the mean of its divisors is an integer number (17310525).

Almost surely, 2^66934001 is an apocalyptic number.

It is an amenable number.

66934001 is a deficient number, since it is larger than the sum of its proper divisors (2308099).

66934001 is a wasteful number, since it uses less digits than its factorization.

66934001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2308098.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 66934001 is about 8181.3202479795. The cubic root of 66934001 is about 406.0214039853.

Adding to 66934001 its reverse (10043966), we get a palindrome (76977967).

The spelling of 66934001 in words is "sixty-six million, nine hundred thirty-four thousand, one".