791979142 has 8 divisors (see below), whose sum is σ = 1188365256. Its totient is φ = 395857392.

The previous prime is 791979131. The next prime is 791979143. The reversal of 791979142 is 241979197.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×791979142² = 1254461922726112328, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (791979143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58423 + ... + 70690.

It is an arithmetic number, because the mean of its divisors is an integer number (148545657).

Almost surely, 2^791979142 is an apocalyptic number.

791979142 is a deficient number, since it is larger than the sum of its proper divisors (396386114).

791979142 is a wasteful number, since it uses less digits than its factorization.

791979142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132182.

The product of its digits is 285768, while the sum is 49.

The square root of 791979142 is about 28142.1239781222. The cubic root of 791979142 is about 925.2048796723.

Subtracting from 791979142 its reverse (241979197), we obtain a palindrome (549999945).

The spelling of 791979142 in words is "seven hundred ninety-one million, nine hundred seventy-nine thousand, one hundred forty-two".