74860829 has 2 divisors, whose sum is σ = 74860830. Its totient is φ = 74860828.

The previous prime is 74860811. The next prime is 74860889. The reversal of 74860829 is 92806847.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51868804 + 22992025 = 7202^2 + 4795^2 .

It is a cyclic number.

It is not a de Polignac number, because 74860829 - 2²⁰ = 73812253 is a prime.

It is a super-5 number, since 5×74860829⁵ (a number of 41 digits) contains 55555 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 74860829.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74860889) 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, 37430414 + 37430415.

It is an arithmetic number, because the mean of its divisors is an integer number (37430415).

Almost surely, 2^74860829 is an apocalyptic number.

It is an amenable number.

74860829 is a deficient number, since it is larger than the sum of its proper divisors (1).

74860829 is an equidigital number, since it uses as much as digits as its factorization.

74860829 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 193536, while the sum is 44.

The square root of 74860829 is about 8652.2152654681. The cubic root of 74860829 is about 421.4553236571.

The spelling of 74860829 in words is "seventy-four million, eight hundred sixty thousand, eight hundred twenty-nine".