74813657 has 2 divisors, whose sum is σ = 74813658. Its totient is φ = 74813656.

The previous prime is 74813603. The next prime is 74813671. The reversal of 74813657 is 75631847.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47554816 + 27258841 = 6896^2 + 5221^2 .

It is a cyclic number.

It is not a de Polignac number, because 74813657 - 2¹⁴ = 74797273 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (74813857) 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, 37406828 + 37406829.

It is an arithmetic number, because the mean of its divisors is an integer number (37406829).

Almost surely, 2^74813657 is an apocalyptic number.

It is an amenable number.

74813657 is a deficient number, since it is larger than the sum of its proper divisors (1).

74813657 is an equidigital number, since it uses as much as digits as its factorization.

74813657 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 141120, while the sum is 41.

The square root of 74813657 is about 8649.4888288268. The cubic root of 74813657 is about 421.3667812774.

The spelling of 74813657 in words is "seventy-four million, eight hundred thirteen thousand, six hundred fifty-seven".