990981435 has 16 divisors (see below), whose sum is σ = 1607904000. Its totient is φ = 521078880.

The previous prime is 990981421. The next prime is 990981443. The reversal of 990981435 is 534189099.

It is not a de Polignac number, because 990981435 - 2⁵ = 990981403 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 464185 + ... + 466314.

It is an arithmetic number, because the mean of its divisors is an integer number (100494000).

Almost surely, 2^990981435 is an apocalyptic number.

990981435 is a deficient number, since it is larger than the sum of its proper divisors (616922565).

990981435 is a wasteful number, since it uses less digits than its factorization.

990981435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 930578.

The product of its (nonzero) digits is 349920, while the sum is 48.

The square root of 990981435 is about 31479.8576076830. The cubic root of 990981435 is about 996.9847289453.

The spelling of 990981435 in words is "nine hundred ninety million, nine hundred eighty-one thousand, four hundred thirty-five".