79947862 has 16 divisors (see below), whose sum is σ = 125325792. Its totient is φ = 38177920.

The previous prime is 79947851. The next prime is 79947869. The reversal of 79947862 is 26874997.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79947869) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 58062 + ... + 59422.

It is an arithmetic number, because the mean of its divisors is an integer number (7832862).

Almost surely, 2^79947862 is an apocalyptic number.

79947862 is a deficient number, since it is larger than the sum of its proper divisors (45377930).

79947862 is a wasteful number, since it uses less digits than its factorization.

79947862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2663.

The product of its digits is 1524096, while the sum is 52.

The square root of 79947862 is about 8941.3568321592. The cubic root of 79947862 is about 430.7933110672.

The spelling of 79947862 in words is "seventy-nine million, nine hundred forty-seven thousand, eight hundred sixty-two".