79785338 has 4 divisors (see below), whose sum is σ = 119678010. Its totient is φ = 39892668.

The previous prime is 79785331. The next prime is 79785347. The reversal of 79785338 is 83358797.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83358797 = 2791 ⋅29867.

It can be written as a sum of positive squares in only one way, i.e., 64754209 + 15031129 = 8047^2 + 3877^2 .

It is not an unprimeable number, because it can be changed into a prime (79785331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19946333 + ... + 19946336.

Almost surely, 2^79785338 is an apocalyptic number.

79785338 is a deficient number, since it is larger than the sum of its proper divisors (39892672).

79785338 is a wasteful number, since it uses less digits than its factorization.

79785338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39892671.

The product of its digits is 1270080, while the sum is 50.

The square root of 79785338 is about 8932.2638787712. The cubic root of 79785338 is about 430.5011967342.

The spelling of 79785338 in words is "seventy-nine million, seven hundred eighty-five thousand, three hundred thirty-eight".