68906310 has 32 divisors (see below), whose sum is σ = 180410112. Its totient is φ = 16704480.

The previous prime is 68906303. The next prime is 68906353. The reversal of 68906310 is 1360986.

It is a super-2 number, since 2×68906310² = 9496159115632200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104074 + ... + 104733.

It is an arithmetic number, because the mean of its divisors is an integer number (5637816).

Almost surely, 2^68906310 is an apocalyptic number.

68906310 is an abundant number, since it is smaller than the sum of its proper divisors (111503802).

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

68906310 is a wasteful number, since it uses less digits than its factorization.

68906310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208828.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 68906310 is about 8300.9824719728. The cubic root of 68906310 is about 409.9708684438.

The spelling of 68906310 in words is "sixty-eight million, nine hundred six thousand, three hundred ten".