68976895 has 16 divisors (see below), whose sum is σ = 89937792. Its totient is φ = 50480640.

The previous prime is 68976889. The next prime is 68976907. The reversal of 68976895 is 59867986.

68976895 = 27² + 28² + ... + 591².

It is not a de Polignac number, because 68976895 - 2²³ = 60588287 is a prime.

It is a super-3 number, since 3×68976895³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent 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 15 ways as a sum of consecutive naturals, for example, 2650 + ... + 12040.

It is an arithmetic number, because the mean of its divisors is an integer number (5621112).

Almost surely, 2^68976895 is an apocalyptic number.

68976895 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

68976895 is a deficient number, since it is larger than the sum of its proper divisors (20960897).

68976895 is a wasteful number, since it uses less digits than its factorization.

68976895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9522.

The product of its digits is 6531840, while the sum is 58.

The square root of 68976895 is about 8305.2329889052. The cubic root of 68976895 is about 410.1108068541.

The spelling of 68976895 in words is "sixty-eight million, nine hundred seventy-six thousand, eight hundred ninety-five".