779796398 has 4 divisors (see below), whose sum is σ = 1169694600. Its totient is φ = 389898198.

The previous prime is 779796397. The next prime is 779796421. The reversal of 779796398 is 893697977.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (779796397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194949098 + ... + 194949101.

It is an arithmetic number, because the mean of its divisors is an integer number (292423650).

Almost surely, 2^779796398 is an apocalyptic number.

779796398 is a deficient number, since it is larger than the sum of its proper divisors (389898202).

779796398 is a wasteful number, since it uses less digits than its factorization.

779796398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389898201.

The product of its digits is 36006768, while the sum is 65.

The square root of 779796398 is about 27924.8347891263. The cubic root of 779796398 is about 920.4363076997.

The spelling of 779796398 in words is "seven hundred seventy-nine million, seven hundred ninety-six thousand, three hundred ninety-eight".