74675749 has 2 divisors, whose sum is σ = 74675750. Its totient is φ = 74675748.

The previous prime is 74675743. The next prime is 74675759. The reversal of 74675749 is 94757647.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44315649 + 30360100 = 6657^2 + 5510^2 .

It is a cyclic number.

It is not a de Polignac number, because 74675749 - 2¹³ = 74667557 is a prime.

It is a super-2 number, since 2×74675749² = 11152934977422002, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74675743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37337874 + 37337875.

It is an arithmetic number, because the mean of its divisors is an integer number (37337875).

Almost surely, 2^74675749 is an apocalyptic number.

It is an amenable number.

74675749 is a deficient number, since it is larger than the sum of its proper divisors (1).

74675749 is an equidigital number, since it uses as much as digits as its factorization.

74675749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1481760, while the sum is 49.

The square root of 74675749 is about 8641.5131198188. The cubic root of 74675749 is about 421.1077127478.

The spelling of 74675749 in words is "seventy-four million, six hundred seventy-five thousand, seven hundred forty-nine".