68902390 has 8 divisors (see below), whose sum is σ = 124024320. Its totient is φ = 27560952.

The previous prime is 68902387. The next prime is 68902397. The reversal of 68902390 is 9320986.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68902397) 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, 3445110 + ... + 3445129.

It is an arithmetic number, because the mean of its divisors is an integer number (15503040).

Almost surely, 2^68902390 is an apocalyptic number.

68902390 is a deficient number, since it is larger than the sum of its proper divisors (55121930).

68902390 is a wasteful number, since it uses less digits than its factorization.

68902390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6890246.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 68902390 is about 8300.7463519855. The cubic root of 68902390 is about 409.9630940407.

The spelling of 68902390 in words is "sixty-eight million, nine hundred two thousand, three hundred ninety".