890149636 has 12 divisors (see below), whose sum is σ = 1558193728. Its totient is φ = 444951432.

The previous prime is 890149621. The next prime is 890149669. The reversal of 890149636 is 636941098.

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13536 + ... + 44311.

Almost surely, 2^890149636 is an apocalyptic number.

It is an amenable number.

890149636 is a deficient number, since it is larger than the sum of its proper divisors (668044092).

890149636 is a wasteful number, since it uses less digits than its factorization.

890149636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61698 (or 61696 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 46.

The square root of 890149636 is about 29835.3755800057. The cubic root of 890149636 is about 961.9540767868.

The spelling of 890149636 in words is "eight hundred ninety million, one hundred forty-nine thousand, six hundred thirty-six".