74164729 has 4 divisors (see below), whose sum is σ = 74325376. Its totient is φ = 74004084.

The previous prime is 74164721. The next prime is 74164751. The reversal of 74164729 is 92746147.

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 74164729 - 2³ = 74164721 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 74164691 and 74164700.

It is not an unprimeable number, because it can be changed into a prime (74164721) 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, 79629 + ... + 80554.

It is an arithmetic number, because the mean of its divisors is an integer number (18581344).

Almost surely, 2^74164729 is an apocalyptic number.

It is an amenable number.

74164729 is a deficient number, since it is larger than the sum of its proper divisors (160647).

74164729 is a wasteful number, since it uses less digits than its factorization.

74164729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160646.

The product of its digits is 84672, while the sum is 40.

The square root of 74164729 is about 8611.8946231361. The cubic root of 74164729 is about 420.1449405276.

The spelling of 74164729 in words is "seventy-four million, one hundred sixty-four thousand, seven hundred twenty-nine".