990512677 has 8 divisors (see below), whose sum is σ = 1234924992. Its totient is φ = 771828000.

The previous prime is 990512671. The next prime is 990512683. The reversal of 990512677 is 776215099.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (990512671) and next prime (990512683).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 990512677 - 2²³ = 982124069 is a prime.

It is a super-2 number, since 2×990512677² = 1962230726595412658, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (990512671) 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, 6431824 + ... + 6431977.

It is an arithmetic number, because the mean of its divisors is an integer number (154365624).

Almost surely, 2^990512677 is an apocalyptic number.

It is an amenable number.

990512677 is a deficient number, since it is larger than the sum of its proper divisors (244412315).

990512677 is a wasteful number, since it uses less digits than its factorization.

990512677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12863819.

The product of its (nonzero) digits is 238140, while the sum is 46.

The square root of 990512677 is about 31472.4113629699. The cubic root of 990512677 is about 996.8275049184.

The spelling of 990512677 in words is "nine hundred ninety million, five hundred twelve thousand, six hundred seventy-seven".