79709448 has 64 divisors (see below), whose sum is σ = 245266560. Its totient is φ = 21021696.

The previous prime is 79709437. The next prime is 79709471. The reversal of 79709448 is 84490797.

It is a happy number.

It is a super-2 number, since 2×79709448² = 12707192200929408, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 79709397 and 79709406.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16065 + ... + 20432.

It is an arithmetic number, because the mean of its divisors is an integer number (3832290).

Almost surely, 2^79709448 is an apocalyptic number.

79709448 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

It is an amenable number.

79709448 is an abundant number, since it is smaller than the sum of its proper divisors (165557112).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

79709448 is a wasteful number, since it uses less digits than its factorization.

79709448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36526 (or 36522 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 48.

The square root of 79709448 is about 8928.0147849340. The cubic root of 79709448 is about 430.3646591169.

The spelling of 79709448 in words is "seventy-nine million, seven hundred nine thousand, four hundred forty-eight".