74944957 has 2 divisors, whose sum is σ = 74944958. Its totient is φ = 74944956.

The previous prime is 74944937. The next prime is 74944967. The reversal of 74944957 is 75944947.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 74063236 + 881721 = 8606^2 + 939^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74944957 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 74944957.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74944937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37472478 + 37472479.

It is an arithmetic number, because the mean of its divisors is an integer number (37472479).

Almost surely, 2^74944957 is an apocalyptic number.

It is an amenable number.

74944957 is a deficient number, since it is larger than the sum of its proper divisors (1).

74944957 is an equidigital number, since it uses as much as digits as its factorization.

74944957 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1270080, while the sum is 49.

The square root of 74944957 is about 8657.0755454715. The cubic root of 74944957 is about 421.6131405930.

The spelling of 74944957 in words is "seventy-four million, nine hundred forty-four thousand, nine hundred fifty-seven".