74705539 has 2 divisors, whose sum is σ = 74705540. Its totient is φ = 74705538.

The previous prime is 74705507. The next prime is 74705551. The reversal of 74705539 is 93550747.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 74705539 - 2⁵ = 74705507 is a prime.

It is not a weakly prime, because it can be changed into another prime (74705569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37352769 + 37352770.

It is an arithmetic number, because the mean of its divisors is an integer number (37352770).

Almost surely, 2^74705539 is an apocalyptic number.

74705539 is a deficient number, since it is larger than the sum of its proper divisors (1).

74705539 is an equidigital number, since it uses as much as digits as its factorization.

74705539 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 132300, while the sum is 40.

The square root of 74705539 is about 8643.2366044208. The cubic root of 74705539 is about 421.1637020578.

The spelling of 74705539 in words is "seventy-four million, seven hundred five thousand, five hundred thirty-nine".