79648090 has 16 divisors (see below), whose sum is σ = 143965800. Its totient is φ = 31726080.

The previous prime is 79648081. The next prime is 79648091. The reversal of 79648090 is 9084697.

It can be written as a sum of positive squares in 4 ways, for example, as 46826649 + 32821441 = 6843^2 + 5729^2 .

It is not an unprimeable number, because it can be changed into a prime (79648091) 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, 14115 + ... + 18934.

Almost surely, 2^79648090 is an apocalyptic number.

79648090 is a deficient number, since it is larger than the sum of its proper divisors (64317710).

79648090 is a wasteful number, since it uses less digits than its factorization.

79648090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33297.

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 79648090 is about 8924.5778611652. The cubic root of 79648090 is about 430.2542033975.

The spelling of 79648090 in words is "seventy-nine million, six hundred forty-eight thousand, ninety".