74629931 has 2 divisors, whose sum is σ = 74629932. Its totient is φ = 74629930.

The previous prime is 74629921. The next prime is 74629939. The reversal of 74629931 is 13992647.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 74629931 - 2¹⁴ = 74613547 is a prime.

It is a super-2 number, since 2×74629931² = 11139253202129522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (74629939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37314965 + 37314966.

It is an arithmetic number, because the mean of its divisors is an integer number (37314966).

Almost surely, 2^74629931 is an apocalyptic number.

74629931 is a deficient number, since it is larger than the sum of its proper divisors (1).

74629931 is an equidigital number, since it uses as much as digits as its factorization.

74629931 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 81648, while the sum is 41.

The square root of 74629931 is about 8638.8616726974. The cubic root of 74629931 is about 421.0215702769.

The spelling of 74629931 in words is "seventy-four million, six hundred twenty-nine thousand, nine hundred thirty-one".