74520829 has 4 divisors (see below), whose sum is σ = 74978176. Its totient is φ = 74063484.

The previous prime is 74520799. The next prime is 74520871. The reversal of 74520829 is 92802547.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 74520829 - 2⁹ = 74520317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74520889) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 228429 + ... + 228754.

It is an arithmetic number, because the mean of its divisors is an integer number (18744544).

Almost surely, 2^74520829 is an apocalyptic number.

It is an amenable number.

74520829 is a deficient number, since it is larger than the sum of its proper divisors (457347).

74520829 is a wasteful number, since it uses less digits than its factorization.

74520829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457346.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 74520829 is about 8632.5447580653. The cubic root of 74520829 is about 420.8163054597.

The spelling of 74520829 in words is "seventy-four million, five hundred twenty thousand, eight hundred twenty-nine".