68997179 has 4 divisors (see below), whose sum is σ = 69028584. Its totient is φ = 68965776.

The previous prime is 68997157. The next prime is 68997197. The reversal of 68997179 is 97179986.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68997179 is a prime.

It is a super-2 number, since 2×68997179² = 9521221419916082, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68997199) 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, 12137 + ... + 16890.

It is an arithmetic number, because the mean of its divisors is an integer number (17257146).

Almost surely, 2^68997179 is an apocalyptic number.

68997179 is a deficient number, since it is larger than the sum of its proper divisors (31405).

68997179 is a wasteful number, since it uses less digits than its factorization.

68997179 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31404.

The product of its digits is 1714608, while the sum is 56.

The square root of 68997179 is about 8306.4540569367. The cubic root of 68997179 is about 410.1510032721.

The spelling of 68997179 in words is "sixty-eight million, nine hundred ninety-seven thousand, one hundred seventy-nine".