68636895 has 16 divisors (see below), whose sum is σ = 111620832. Its totient is φ = 36005760.

The previous prime is 68636879. The next prime is 68636917. The reversal of 68636895 is 59863686.

It is not a de Polignac number, because 68636895 - 2⁴ = 68636879 is a prime.

It is a super-2 number, since 2×68636895² = 9422046710482050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36592 + ... + 38421.

It is an arithmetic number, because the mean of its divisors is an integer number (6976302).

Almost surely, 2^68636895 is an apocalyptic number.

68636895 is a deficient number, since it is larger than the sum of its proper divisors (42983937).

68636895 is a wasteful number, since it uses less digits than its factorization.

68636895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75082.

The product of its digits is 1866240, while the sum is 51.

The square root of 68636895 is about 8284.7386802482. The cubic root of 68636895 is about 409.4358590638.

The spelling of 68636895 in words is "sixty-eight million, six hundred thirty-six thousand, eight hundred ninety-five".