68288870 has 16 divisors (see below), whose sum is σ = 132375600. Its totient is φ = 25214304.

The previous prime is 68288867. The next prime is 68288887. The reversal of 68288870 is 7888286.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 262520 + ... + 262779.

It is an arithmetic number, because the mean of its divisors is an integer number (8273475).

Almost surely, 2^68288870 is an apocalyptic number.

68288870 is a deficient number, since it is larger than the sum of its proper divisors (64086730).

68288870 is a wasteful number, since it uses less digits than its factorization.

68288870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525319.

The product of its (nonzero) digits is 344064, while the sum is 47.

The square root of 68288870 is about 8263.7080054900. The cubic root of 68288870 is about 408.7426680564.

The spelling of 68288870 in words is "sixty-eight million, two hundred eighty-eight thousand, eight hundred seventy".