890078668 has 12 divisors (see below), whose sum is σ = 1590779232. Its totient is φ = 435570320.

The previous prime is 890078663. The next prime is 890078677. The reversal of 890078668 is 866870098.

It is not an unprimeable number, because it can be changed into a prime (890078663) 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, 2367043 + ... + 2367418.

It is an arithmetic number, because the mean of its divisors is an integer number (132564936).

Almost surely, 2^890078668 is an apocalyptic number.

It is an amenable number.

890078668 is a deficient number, since it is larger than the sum of its proper divisors (700700564).

890078668 is a wasteful number, since it uses less digits than its factorization.

890078668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4734512 (or 4734510 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 52.

The square root of 890078668 is about 29834.1862298941. The cubic root of 890078668 is about 961.9285118823.

The spelling of 890078668 in words is "eight hundred ninety million, seventy-eight thousand, six hundred sixty-eight".