74703731 has 2 divisors, whose sum is σ = 74703732. Its totient is φ = 74703730.

The previous prime is 74703719. The next prime is 74703749. The reversal of 74703731 is 13730747.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 74703731 - 2²² = 70509427 is a prime.

It is a super-2 number, since 2×74703731² = 11161294850640722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (74703781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37351865 + 37351866.

It is an arithmetic number, because the mean of its divisors is an integer number (37351866).

Almost surely, 2^74703731 is an apocalyptic number.

74703731 is a deficient number, since it is larger than the sum of its proper divisors (1).

74703731 is an equidigital number, since it uses as much as digits as its factorization.

74703731 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12348, while the sum is 32.

The square root of 74703731 is about 8643.1320133387. The cubic root of 74703731 is about 421.1603044065.

The spelling of 74703731 in words is "seventy-four million, seven hundred three thousand, seven hundred thirty-one".