74749873 has 16 divisors (see below), whose sum is σ = 83592000. Its totient is φ = 66268480.

The previous prime is 74749861. The next prime is 74749889. The reversal of 74749873 is 37894747.

It is a cyclic number.

It is not a de Polignac number, because 74749873 - 2⁵ = 74749841 is a prime.

It is a super-2 number, since 2×74749873² = 11175087027032258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74749853) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96315 + ... + 97087.

It is an arithmetic number, because the mean of its divisors is an integer number (5224500).

Almost surely, 2^74749873 is an apocalyptic number.

It is an amenable number.

74749873 is a deficient number, since it is larger than the sum of its proper divisors (8842127).

74749873 is a wasteful number, since it uses less digits than its factorization.

74749873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 992.

The product of its digits is 1185408, while the sum is 49.

The square root of 74749873 is about 8645.8008882925. The cubic root of 74749873 is about 421.2469987782.

It can be divided in two parts, 74 and 749873, that added together give a palindrome (749947).

The spelling of 74749873 in words is "seventy-four million, seven hundred forty-nine thousand, eight hundred seventy-three".