68536900 has 18 divisors (see below), whose sum is σ = 148725290. Its totient is φ = 27414720.

The previous prime is 68536879. The next prime is 68536957. The reversal of 68536900 is 963586.

It can be written as a sum of positive squares in 3 ways, for example, as 9585216 + 58951684 = 3096^2 + 7678^2 .

It is a super-2 number, since 2×68536900² = 9394613323220000, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 68536900.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 342585 + ... + 342784.

Almost surely, 2^68536900 is an apocalyptic number.

It is an amenable number.

68536900 is an abundant number, since it is smaller than the sum of its proper divisors (80188390).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68536900 is a wasteful number, since it uses less digits than its factorization.

68536900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 685383 (or 685376 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 68536900 is about 8278.7015890174. The cubic root of 68536900 is about 409.2369308878.

The spelling of 68536900 in words is "sixty-eight million, five hundred thirty-six thousand, nine hundred".