74423907 has 8 divisors (see below), whose sum is σ = 110257680. Its totient is φ = 49615920.

The previous prime is 74423903. The next prime is 74423911. The reversal of 74423907 is 70932447.

It is an interprime number because it is at equal distance from previous prime (74423903) and next prime (74423911).

It is not a de Polignac number, because 74423907 - 2² = 74423903 is a prime.

It is not an unprimeable number, because it can be changed into a prime (74423903) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1378194 + ... + 1378247.

It is an arithmetic number, because the mean of its divisors is an integer number (13782210).

Almost surely, 2^74423907 is an apocalyptic number.

74423907 is a deficient number, since it is larger than the sum of its proper divisors (35833773).

74423907 is a wasteful number, since it uses less digits than its factorization.

74423907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2756450 (or 2756444 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The square root of 74423907 is about 8626.9291755526. The cubic root of 74423907 is about 420.6337880187.

The spelling of 74423907 in words is "seventy-four million, four hundred twenty-three thousand, nine hundred seven".