979782142 has 4 divisors (see below), whose sum is σ = 1469673216. Its totient is φ = 489891070.

The previous prime is 979782137. The next prime is 979782191. The reversal of 979782142 is 241287979.

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

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244945534 + ... + 244945537.

It is an arithmetic number, because the mean of its divisors is an integer number (367418304).

Almost surely, 2^979782142 is an apocalyptic number.

979782142 is a deficient number, since it is larger than the sum of its proper divisors (489891074).

979782142 is a wasteful number, since it uses less digits than its factorization.

979782142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489891073.

The product of its digits is 508032, while the sum is 49.

The square root of 979782142 is about 31301.4718823253. The cubic root of 979782142 is about 993.2147789034.

The spelling of 979782142 in words is "nine hundred seventy-nine million, seven hundred eighty-two thousand, one hundred forty-two".