68413686 has 32 divisors (see below), whose sum is σ = 151804800. Its totient is φ = 20378880.

The previous prime is 68413649. The next prime is 68413687. The reversal of 68413686 is 68631486.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68413687) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4891 + ... + 12678.

It is an arithmetic number, because the mean of its divisors is an integer number (4743900).

Almost surely, 2^68413686 is an apocalyptic number.

68413686 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

68413686 is an abundant number, since it is smaller than the sum of its proper divisors (83391114).

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

68413686 is a wasteful number, since it uses less digits than its factorization.

68413686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17644.

The product of its digits is 165888, while the sum is 42.

The square root of 68413686 is about 8271.2566155331. The cubic root of 68413686 is about 408.9915449897.

The spelling of 68413686 in words is "sixty-eight million, four hundred thirteen thousand, six hundred eighty-six".