74869057 has 2 divisors, whose sum is σ = 74869058. Its totient is φ = 74869056.

The previous prime is 74869049. The next prime is 74869079. The reversal of 74869057 is 75096847.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41679936 + 33189121 = 6456^2 + 5761^2 .

It is a cyclic number.

It is not a de Polignac number, because 74869057 - 2³ = 74869049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 74868998 and 74869016.

It is not a weakly prime, because it can be changed into another prime (74869027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37434528 + 37434529.

It is an arithmetic number, because the mean of its divisors is an integer number (37434529).

Almost surely, 2^74869057 is an apocalyptic number.

It is an amenable number.

74869057 is a deficient number, since it is larger than the sum of its proper divisors (1).

74869057 is an equidigital number, since it uses as much as digits as its factorization.

74869057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 423360, while the sum is 46.

The square root of 74869057 is about 8652.6907375683. The cubic root of 74869057 is about 421.4707638965.

The spelling of 74869057 in words is "seventy-four million, eight hundred sixty-nine thousand, fifty-seven".