74955731 has 2 divisors, whose sum is σ = 74955732. Its totient is φ = 74955730.

The previous prime is 74955709. The next prime is 74955757. The reversal of 74955731 is 13755947.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74955731 is a prime.

It is a super-2 number, since 2×74955731² = 11236723219488722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (74955701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37477865 + 37477866.

It is an arithmetic number, because the mean of its divisors is an integer number (37477866).

Almost surely, 2^74955731 is an apocalyptic number.

74955731 is a deficient number, since it is larger than the sum of its proper divisors (1).

74955731 is an equidigital number, since it uses as much as digits as its factorization.

74955731 is an evil number, because the sum of its binary digits is even.

The product of its digits is 132300, while the sum is 41.

The square root of 74955731 is about 8657.6977886734. The cubic root of 74955731 is about 421.6333431634.

The spelling of 74955731 in words is "seventy-four million, nine hundred fifty-five thousand, seven hundred thirty-one".