66804926 has 8 divisors (see below), whose sum is σ = 104564304. Its totient is φ = 31950160.

The previous prime is 66804923. The next prime is 66804937. The reversal of 66804926 is 62940866.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66804923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 726095 + ... + 726186.

It is an arithmetic number, because the mean of its divisors is an integer number (13070538).

Almost surely, 2^66804926 is an apocalyptic number.

66804926 is a deficient number, since it is larger than the sum of its proper divisors (37759378).

66804926 is a wasteful number, since it uses less digits than its factorization.

66804926 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1452306.

The product of its (nonzero) digits is 124416, while the sum is 41.

The square root of 66804926 is about 8173.4280445845. The cubic root of 66804926 is about 405.7602465502.

The spelling of 66804926 in words is "sixty-six million, eight hundred four thousand, nine hundred twenty-six".