67020001 has 4 divisors (see below), whose sum is σ = 70962372. Its totient is φ = 63077632.

The previous prime is 67019963. The next prime is 67020013. The reversal of 67020001 is 10002076.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 46226401 + 20793600 = 6799^2 + 4560^2 .

It is a cyclic number.

It is not a de Polignac number, because 67020001 - 2¹³ = 67011809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67020901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1971160 + ... + 1971193.

It is an arithmetic number, because the mean of its divisors is an integer number (17740593).

Almost surely, 2^67020001 is an apocalyptic number.

It is an amenable number.

67020001 is a deficient number, since it is larger than the sum of its proper divisors (3942371).

67020001 is a wasteful number, since it uses less digits than its factorization.

67020001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3942370.

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 67020001 is about 8186.5744362340. The cubic root of 67020001 is about 406.1952214582.

Adding to 67020001 its reverse (10002076), we get a palindrome (77022077).

The spelling of 67020001 in words is "sixty-seven million, twenty thousand, one".