79224641 has 8 divisors (see below), whose sum is σ = 84450600. Its totient is φ = 74061568.

The previous prime is 79224617. The next prime is 79224643. The reversal of 79224641 is 14642297.

It can be written as a sum of positive squares in 4 ways, for example, as 9985600 + 69239041 = 3160^2 + 8321^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 79224641 - 2¹⁸ = 78962497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79224643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13106 + ... + 18171.

It is an arithmetic number, because the mean of its divisors is an integer number (10556325).

Almost surely, 2^79224641 is an apocalyptic number.

It is an amenable number.

79224641 is a deficient number, since it is larger than the sum of its proper divisors (5225959).

79224641 is a wasteful number, since it uses less digits than its factorization.

79224641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31443.

The product of its digits is 24192, while the sum is 35.

The square root of 79224641 is about 8900.8224900848. The cubic root of 79224641 is about 429.4903661167.

The spelling of 79224641 in words is "seventy-nine million, two hundred twenty-four thousand, six hundred forty-one".