990567892 has 12 divisors (see below), whose sum is σ = 1750324576. Its totient is φ = 490475160.

The previous prime is 990567889. The next prime is 990567937. The reversal of 990567892 is 298765099.

It is a super-2 number, since 2×990567892² = 1962449497322647328, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1201734 + ... + 1202557.

Almost surely, 2^990567892 is an apocalyptic number.

It is an amenable number.

990567892 is a deficient number, since it is larger than the sum of its proper divisors (759756684).

990567892 is a wasteful number, since it uses less digits than its factorization.

990567892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2404398 (or 2404396 counting only the distinct ones).

The product of its (nonzero) digits is 2449440, while the sum is 55.

The square root of 990567892 is about 31473.2885475922. The cubic root of 990567892 is about 996.8460269119.

The spelling of 990567892 in words is "nine hundred ninety million, five hundred sixty-seven thousand, eight hundred ninety-two".