79445413 has 16 divisors (see below), whose sum is σ = 85100400. Its totient is φ = 74027520.

The previous prime is 79445411. The next prime is 79445417. The reversal of 79445413 is 31454497.

It can be written as a sum of positive squares in 8 ways, for example, as 20493729 + 58951684 = 4527^2 + 7678^2 .

It is a cyclic number.

It is not a de Polignac number, because 79445413 - 2¹ = 79445411 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79445411) 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, 129295 + ... + 129907.

It is an arithmetic number, because the mean of its divisors is an integer number (5318775).

Almost surely, 2^79445413 is an apocalyptic number.

It is an amenable number.

79445413 is a deficient number, since it is larger than the sum of its proper divisors (5654987).

79445413 is a wasteful number, since it uses less digits than its factorization.

79445413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 792.

The product of its digits is 60480, while the sum is 37.

The square root of 79445413 is about 8913.2156374678. The cubic root of 79445413 is about 429.8889437374. Note that the first 3 decimals are identical.

The spelling of 79445413 in words is "seventy-nine million, four hundred forty-five thousand, four hundred thirteen".