79840804 has 6 divisors (see below), whose sum is σ = 139721414. Its totient is φ = 39920400.

The previous prime is 79840801. The next prime is 79840807. The reversal of 79840804 is 40804897.

It is an interprime number because it is at equal distance from previous prime (79840801) and next prime (79840807).

It can be written as a sum of positive squares in only one way, i.e., 78145600 + 1695204 = 8840^2 + 1302^2 .

It is not an unprimeable number, because it can be changed into a prime (79840801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9980097 + ... + 9980104.

Almost surely, 2^79840804 is an apocalyptic number.

It is an amenable number.

79840804 is a deficient number, since it is larger than the sum of its proper divisors (59880610).

79840804 is a wasteful number, since it uses less digits than its factorization.

79840804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19960205 (or 19960203 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 79840804 is about 8935.3681513411. The cubic root of 79840804 is about 430.6009337236.

The spelling of 79840804 in words is "seventy-nine million, eight hundred forty thousand, eight hundred four".