990239935 has 8 divisors (see below), whose sum is σ = 1188632016. Its totient is φ = 791962560.

The previous prime is 990239927. The next prime is 990240019. The reversal of 990239935 is 539932099.

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

It is not a de Polignac number, because 990239935 - 2³ = 990239927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8374 + ... + 45283.

It is an arithmetic number, because the mean of its divisors is an integer number (148579002).

Almost surely, 2^990239935 is an apocalyptic number.

990239935 is a deficient number, since it is larger than the sum of its proper divisors (198392081).

990239935 is a wasteful number, since it uses less digits than its factorization.

990239935 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57353.

The product of its (nonzero) digits is 590490, while the sum is 49.

The square root of 990239935 is about 31468.0780315545. The cubic root of 990239935 is about 996.7360029142.

The spelling of 990239935 in words is "nine hundred ninety million, two hundred thirty-nine thousand, nine hundred thirty-five".