79943655 has 32 divisors (see below), whose sum is σ = 141327360. Its totient is φ = 38263680.

The previous prime is 79943629. The next prime is 79943693. The reversal of 79943655 is 55634997.

It is not a de Polignac number, because 79943655 - 2¹⁹ = 79419367 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9969 + ... + 16101.

It is an arithmetic number, because the mean of its divisors is an integer number (4416480).

Almost surely, 2^79943655 is an apocalyptic number.

79943655 is a deficient number, since it is larger than the sum of its proper divisors (61383705).

79943655 is a wasteful number, since it uses less digits than its factorization.

79943655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6231.

The product of its digits is 1020600, while the sum is 48.

The square root of 79943655 is about 8941.1215739414. The cubic root of 79943655 is about 430.7857545622.

The spelling of 79943655 in words is "seventy-nine million, nine hundred forty-three thousand, six hundred fifty-five".