79780896 has 96 divisors (see below), whose sum is σ = 250629120. Its totient is φ = 24544512.

The previous prime is 79780889. The next prime is 79780903. The reversal of 79780896 is 69808797.

It is an interprime number because it is at equal distance from previous prime (79780889) and next prime (79780903).

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7681 + ... + 14783.

It is an arithmetic number, because the mean of its divisors is an integer number (2610720).

Almost surely, 2^79780896 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79780896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125314560).

79780896 is an abundant number, since it is smaller than the sum of its proper divisors (170848224).

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

79780896 is a wasteful number, since it uses less digits than its factorization.

79780896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7135 (or 7121 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 54.

The square root of 79780896 is about 8932.0152261402. The cubic root of 79780896 is about 430.4932072888.

The spelling of 79780896 in words is "seventy-nine million, seven hundred eighty thousand, eight hundred ninety-six".