79802738 has 8 divisors (see below), whose sum is σ = 119764332. Its totient is φ = 39881296.

The previous prime is 79802731. The next prime is 79802741. The reversal of 79802738 is 83720897.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 70174129 + 9628609 = 8377^2 + 3103^2 .

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

It is not an unprimeable number, because it can be changed into a prime (79802731) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4445 + ... + 13392.

Almost surely, 2^79802738 is an apocalyptic number.

79802738 is a deficient number, since it is larger than the sum of its proper divisors (39961594).

79802738 is a wasteful number, since it uses less digits than its factorization.

79802738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20076.

The product of its (nonzero) digits is 169344, while the sum is 44.

The square root of 79802738 is about 8933.2378228725. The cubic root of 79802738 is about 430.5324897702.

The spelling of 79802738 in words is "seventy-nine million, eight hundred two thousand, seven hundred thirty-eight".