68920115 has 8 divisors (see below), whose sum is σ = 90222768. Its totient is φ = 50123680.

The previous prime is 68920097. The next prime is 68920133. The reversal of 68920115 is 51102986.

It is an interprime number because it is at equal distance from previous prime (68920097) and next prime (68920133).

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

It is not a de Polignac number, because 68920115 - 2⁶ = 68920051 is a prime.

It is a super-2 number, since 2×68920115² = 9499964503226450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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, 626492 + ... + 626601.

It is an arithmetic number, because the mean of its divisors is an integer number (11277846).

Almost surely, 2^68920115 is an apocalyptic number.

68920115 is a deficient number, since it is larger than the sum of its proper divisors (21302653).

68920115 is a wasteful number, since it uses less digits than its factorization.

68920115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1253109.

The product of its (nonzero) digits is 4320, while the sum is 32.

The square root of 68920115 is about 8301.8139584069. The cubic root of 68920115 is about 409.9982450847.

The spelling of 68920115 in words is "sixty-eight million, nine hundred twenty thousand, one hundred fifteen".