979637398 has 4 divisors (see below), whose sum is σ = 1469456100. Its totient is φ = 489818698.

The previous prime is 979637387. The next prime is 979637401. The reversal of 979637398 is 893736979.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244909348 + ... + 244909351.

It is an arithmetic number, because the mean of its divisors is an integer number (367364025).

Almost surely, 2^979637398 is an apocalyptic number.

979637398 is a deficient number, since it is larger than the sum of its proper divisors (489818702).

979637398 is a wasteful number, since it uses less digits than its factorization.

979637398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489818701.

The product of its digits is 15431472, while the sum is 61.

The square root of 979637398 is about 31299.1597011805. The cubic root of 979637398 is about 993.1658670234.

The spelling of 979637398 in words is "nine hundred seventy-nine million, six hundred thirty-seven thousand, three hundred ninety-eight".