79667155 has 16 divisors (see below), whose sum is σ = 97574400. Its totient is φ = 62431200.

The previous prime is 79667143. The next prime is 79667197. The reversal of 79667155 is 55176697.

It is a happy number.

It is not a de Polignac number, because 79667155 - 2⁵ = 79667123 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54180 + ... + 55630.

It is an arithmetic number, because the mean of its divisors is an integer number (6098400).

Almost surely, 2^79667155 is an apocalyptic number.

79667155 is a deficient number, since it is larger than the sum of its proper divisors (17907245).

79667155 is a wasteful number, since it uses less digits than its factorization.

79667155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1674.

The product of its digits is 396900, while the sum is 46.

The square root of 79667155 is about 8925.6459150025. The cubic root of 79667155 is about 430.2885299875.

The spelling of 79667155 in words is "seventy-nine million, six hundred sixty-seven thousand, one hundred fifty-five".