68309086 has 8 divisors (see below), whose sum is σ = 102521160. Its totient is φ = 34135368.

The previous prime is 68309071. The next prime is 68309173. The reversal of 68309086 is 68090386.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×68309086² = 9332262460310792, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4621 + ... + 12568.

It is an arithmetic number, because the mean of its divisors is an integer number (12815145).

Almost surely, 2^68309086 is an apocalyptic number.

68309086 is a deficient number, since it is larger than the sum of its proper divisors (34212074).

68309086 is a wasteful number, since it uses less digits than its factorization.

68309086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19178.

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 68309086 is about 8264.9310946916. The cubic root of 68309086 is about 408.7829983304.

The spelling of 68309086 in words is "sixty-eight million, three hundred nine thousand, eighty-six".