74808623 has 2 divisors, whose sum is σ = 74808624. Its totient is φ = 74808622.

The previous prime is 74808607. The next prime is 74808659. The reversal of 74808623 is 32680847.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 74808623 - 2⁴ = 74808607 is a prime.

It is a super-2 number, since 2×74808623² = 11192660150312258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74808323) 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 as a sum of consecutive naturals, namely, 37404311 + 37404312.

It is an arithmetic number, because the mean of its divisors is an integer number (37404312).

Almost surely, 2^74808623 is an apocalyptic number.

74808623 is a deficient number, since it is larger than the sum of its proper divisors (1).

74808623 is an equidigital number, since it uses as much as digits as its factorization.

74808623 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 74808623 is about 8649.1978240759. The cubic root of 74808623 is about 421.3573302046.

The spelling of 74808623 in words is "seventy-four million, eight hundred eight thousand, six hundred twenty-three".