74966831 has 2 divisors, whose sum is σ = 74966832. Its totient is φ = 74966830.

The previous prime is 74966809. The next prime is 74966849. The reversal of 74966831 is 13866947.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 74966831 - 2⁶ = 74966767 is a prime.

It is a super-2 number, since 2×74966831² = 11240051500365122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74966851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37483415 + 37483416.

It is an arithmetic number, because the mean of its divisors is an integer number (37483416).

Almost surely, 2^74966831 is an apocalyptic number.

74966831 is a deficient number, since it is larger than the sum of its proper divisors (1).

74966831 is an equidigital number, since it uses as much as digits as its factorization.

74966831 is an evil number, because the sum of its binary digits is even.

The product of its digits is 217728, while the sum is 44.

The square root of 74966831 is about 8658.3388129594. The cubic root of 74966831 is about 421.6541549993.

The spelling of 74966831 in words is "seventy-four million, nine hundred sixty-six thousand, eight hundred thirty-one".