68004855 has 72 divisors (see below), whose sum is σ = 129018240. Its totient is φ = 33062400.

The previous prime is 68004847. The next prime is 68004877. The reversal of 68004855 is 55840086.

It is a happy number.

It is not a de Polignac number, because 68004855 - 2³ = 68004847 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1658635 + ... + 1658675.

It is an arithmetic number, because the mean of its divisors is an integer number (1791920).

Almost surely, 2^68004855 is an apocalyptic number.

68004855 is a deficient number, since it is larger than the sum of its proper divisors (61013385).

68004855 is a wasteful number, since it uses less digits than its factorization.

68004855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153 (or 109 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The square root of 68004855 is about 8246.5056235960. The cubic root of 68004855 is about 408.1752238995.

The spelling of 68004855 in words is "sixty-eight million, four thousand, eight hundred fifty-five".