68869090 has 32 divisors (see below), whose sum is σ = 126282240. Its totient is φ = 27037824.

The previous prime is 68869081. The next prime is 68869103. The reversal of 68869090 is 9096886.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 68869090.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 198297 + ... + 198643.

It is an arithmetic number, because the mean of its divisors is an integer number (3946320).

Almost surely, 2^68869090 is an apocalyptic number.

68869090 is a deficient number, since it is larger than the sum of its proper divisors (57413150).

68869090 is a wasteful number, since it uses less digits than its factorization.

68869090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666.

The product of its (nonzero) digits is 186624, while the sum is 46.

The square root of 68869090 is about 8298.7402658476. The cubic root of 68869090 is about 409.8970393853.

The spelling of 68869090 in words is "sixty-eight million, eight hundred sixty-nine thousand, ninety".