74694623 has 2 divisors, whose sum is σ = 74694624. Its totient is φ = 74694622.

The previous prime is 74694619. The next prime is 74694629. The reversal of 74694623 is 32649647.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 74694623 - 2² = 74694619 is a prime.

It is a super-2 number, since 2×74694623² = 11158573410224258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74694629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37347311 + 37347312.

It is an arithmetic number, because the mean of its divisors is an integer number (37347312).

Almost surely, 2^74694623 is an apocalyptic number.

74694623 is a deficient number, since it is larger than the sum of its proper divisors (1).

74694623 is an equidigital number, since it uses as much as digits as its factorization.

74694623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 217728, while the sum is 41.

The square root of 74694623 is about 8642.6051049438. The cubic root of 74694623 is about 421.1431875285.

The spelling of 74694623 in words is "seventy-four million, six hundred ninety-four thousand, six hundred twenty-three".