74464729 has 4 divisors (see below), whose sum is σ = 75513600. Its totient is φ = 73415860.

The previous prime is 74464727. The next prime is 74464769. The reversal of 74464729 is 92746447.

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, and also an emirpimes, since its reverse is a distinct semiprime: 92746447 = 4999 ⋅18553.

It is a cyclic number.

It is not a de Polignac number, because 74464729 - 2¹ = 74464727 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74464727) 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, 524329 + ... + 524470.

It is an arithmetic number, because the mean of its divisors is an integer number (18878400).

Almost surely, 2^74464729 is an apocalyptic number.

It is an amenable number.

74464729 is a deficient number, since it is larger than the sum of its proper divisors (1048871).

74464729 is a wasteful number, since it uses less digits than its factorization.

74464729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1048870.

The product of its digits is 338688, while the sum is 43.

The square root of 74464729 is about 8629.2948147575. The cubic root of 74464729 is about 420.7106807567.

The spelling of 74464729 in words is "seventy-four million, four hundred sixty-four thousand, seven hundred twenty-nine".