79456749 has 16 divisors (see below), whose sum is σ = 107553600. Its totient is φ = 52171776.

The previous prime is 79456721. The next prime is 79456757. The reversal of 79456749 is 94765497.

It is not a de Polignac number, because 79456749 - 2⁵ = 79456717 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79455749) 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, 62482 + ... + 63740.

It is an arithmetic number, because the mean of its divisors is an integer number (6722100).

Almost surely, 2^79456749 is an apocalyptic number.

It is an amenable number.

79456749 is a deficient number, since it is larger than the sum of its proper divisors (28096851).

79456749 is a wasteful number, since it uses less digits than its factorization.

79456749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1564.

The product of its digits is 1905120, while the sum is 51.

The square root of 79456749 is about 8913.8515244534. The cubic root of 79456749 is about 429.9093895971.

The spelling of 79456749 in words is "seventy-nine million, four hundred fifty-six thousand, seven hundred forty-nine".