890698646 has 16 divisors (see below), whose sum is σ = 1447539984. Its totient is φ = 409403904.

The previous prime is 890698643. The next prime is 890698651. The reversal of 890698646 is 646896098.

It is a junction number, because it is equal to n+sod(n) for n = 890698591 and 890698600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (890698643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 303155 + ... + 306078.

It is an arithmetic number, because the mean of its divisors is an integer number (90471249).

Almost surely, 2^890698646 is an apocalyptic number.

890698646 is a gapful number since it is divisible by the number (86) formed by its first and last digit.

890698646 is a deficient number, since it is larger than the sum of its proper divisors (556841338).

890698646 is a wasteful number, since it uses less digits than its factorization.

890698646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 609295.

The product of its (nonzero) digits is 4478976, while the sum is 56.

The square root of 890698646 is about 29844.5748168742. The cubic root of 890698646 is about 962.1518015469.

The spelling of 890698646 in words is "eight hundred ninety million, six hundred ninety-eight thousand, six hundred forty-six".