68687898 has 16 divisors (see below), whose sum is σ = 137536320. Its totient is φ = 22869216.

The previous prime is 68687897. The next prime is 68687911. The reversal of 68687898 is 89878686.

It is not an unprimeable number, because it can be changed into a prime (68687897) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 715 + ... + 11742.

It is an arithmetic number, because the mean of its divisors is an integer number (8596020).

Almost surely, 2^68687898 is an apocalyptic number.

68687898 is an abundant number, since it is smaller than the sum of its proper divisors (68848422).

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

68687898 is a wasteful number, since it uses less digits than its factorization.

68687898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13381.

The product of its digits is 9289728, while the sum is 60.

The square root of 68687898 is about 8287.8162383103. The cubic root of 68687898 is about 409.5372490756.

The spelling of 68687898 in words is "sixty-eight million, six hundred eighty-seven thousand, eight hundred ninety-eight".