68390956 has 12 divisors (see below), whose sum is σ = 125983480. Its totient is φ = 32395680.

The previous prime is 68390953. The next prime is 68390957. The reversal of 68390956 is 65909386.

It is not an unprimeable number, because it can be changed into a prime (68390953) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 449865 + ... + 450016.

Almost surely, 2^68390956 is an apocalyptic number.

It is an amenable number.

68390956 is a deficient number, since it is larger than the sum of its proper divisors (57592524).

68390956 is a wasteful number, since it uses less digits than its factorization.

68390956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 899904 (or 899902 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 46.

The square root of 68390956 is about 8269.8824659121. The cubic root of 68390956 is about 408.9462450500.

The spelling of 68390956 in words is "sixty-eight million, three hundred ninety thousand, nine hundred fifty-six".