79783898 has 4 divisors (see below), whose sum is σ = 119675850. Its totient is φ = 39891948.

The previous prime is 79783897. The next prime is 79783919. The reversal of 79783898 is 89838797.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 75811849 + 3972049 = 8707^2 + 1993^2 .

It is not an unprimeable number, because it can be changed into a prime (79783897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19945973 + ... + 19945976.

Almost surely, 2^79783898 is an apocalyptic number.

79783898 is a deficient number, since it is larger than the sum of its proper divisors (39891952).

79783898 is a wasteful number, since it uses less digits than its factorization.

79783898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39891951.

The product of its digits is 6096384, while the sum is 59.

The square root of 79783898 is about 8932.1832717427. The cubic root of 79783898 is about 430.4986067619.

The spelling of 79783898 in words is "seventy-nine million, seven hundred eighty-three thousand, eight hundred ninety-eight".