890078856 has 32 divisors (see below), whose sum is σ = 2272544640. Its totient is φ = 290379968.

The previous prime is 890078831. The next prime is 890078869. The reversal of 890078856 is 658870098.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 890078799 and 890078808.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 393411 + ... + 395666.

It is an arithmetic number, because the mean of its divisors is an integer number (71017020).

Almost surely, 2^890078856 is an apocalyptic number.

It is an amenable number.

890078856 is an abundant number, since it is smaller than the sum of its proper divisors (1382465784).

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

890078856 is a wasteful number, since it uses less digits than its factorization.

890078856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 789133 (or 789129 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 51.

The square root of 890078856 is about 29834.1893806418. The cubic root of 890078856 is about 961.9285796076.

The spelling of 890078856 in words is "eight hundred ninety million, seventy-eight thousand, eight hundred fifty-six".