990363577 has 8 divisors (see below), whose sum is σ = 1198423296. Its totient is φ = 798948672.

The previous prime is 990363559. The next prime is 990363599. The reversal of 990363577 is 775363099.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-990363577 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 990363577.

It is not an unprimeable number, because it can be changed into a prime (990363677) 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, 4161073 + ... + 4161310.

It is an arithmetic number, because the mean of its divisors is an integer number (149802912).

Almost surely, 2^990363577 is an apocalyptic number.

It is an amenable number.

990363577 is a deficient number, since it is larger than the sum of its proper divisors (208059719).

990363577 is a wasteful number, since it uses less digits than its factorization.

990363577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8322407.

The product of its (nonzero) digits is 1071630, while the sum is 49.

The square root of 990363577 is about 31470.0425325420. The cubic root of 990363577 is about 996.7774855555. Note that the first 3 decimals are identical.

The spelling of 990363577 in words is "nine hundred ninety million, three hundred sixty-three thousand, five hundred seventy-seven".