990353177 has 32 divisors (see below), whose sum is σ = 1128919680. Its totient is φ = 868296000.

The previous prime is 990353171. The next prime is 990353201. The reversal of 990353177 is 771353099.

It is not a de Polignac number, because 990353177 - 2¹² = 990349081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (990353171) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7124774 + ... + 7124912.

It is an arithmetic number, because the mean of its divisors is an integer number (35278740).

Almost surely, 2^990353177 is an apocalyptic number.

It is an amenable number.

990353177 is a deficient number, since it is larger than the sum of its proper divisors (138566503).

990353177 is a wasteful number, since it uses less digits than its factorization.

990353177 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326 (or 304 counting only the distinct ones).

The product of its (nonzero) digits is 178605, while the sum is 44.

The square root of 990353177 is about 31469.8772955981. The cubic root of 990353177 is about 996.7739964254.

The spelling of 990353177 in words is "nine hundred ninety million, three hundred fifty-three thousand, one hundred seventy-seven".