76724969 has 4 divisors (see below), whose sum is σ = 79200000. Its totient is φ = 74249940.

The previous prime is 76724933. The next prime is 76725041. The reversal of 76724969 is 96942767.

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 a de Polignac number, because none of the positive numbers 2^k-76724969 is a prime.

It is a super-2 number, since 2×76724969² = 11773441736101922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76724929) 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, 1237469 + ... + 1237530.

It is an arithmetic number, because the mean of its divisors is an integer number (19800000).

Almost surely, 2^76724969 is an apocalyptic number.

It is an amenable number.

76724969 is a deficient number, since it is larger than the sum of its proper divisors (2475031).

76724969 is a wasteful number, since it uses less digits than its factorization.

76724969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2475030.

The product of its digits is 1143072, while the sum is 50.

The square root of 76724969 is about 8759.2790228420. The cubic root of 76724969 is about 424.9249583771.

The spelling of 76724969 in words is "seventy-six million, seven hundred twenty-four thousand, nine hundred sixty-nine".