990811370 has 16 divisors (see below), whose sum is σ = 1785120768. Its totient is φ = 395955600.

The previous prime is 990811369. The next prime is 990811387. The reversal of 990811370 is 73118099.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34706 + ... + 56445.

It is an arithmetic number, because the mean of its divisors is an integer number (111570048).

Almost surely, 2^990811370 is an apocalyptic number.

990811370 is a deficient number, since it is larger than the sum of its proper divisors (794309398).

990811370 is a wasteful number, since it uses less digits than its factorization.

990811370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92245.

The product of its (nonzero) digits is 13608, while the sum is 38.

The square root of 990811370 is about 31477.1563200998. The cubic root of 990811370 is about 996.9276939353.

The spelling of 990811370 in words is "nine hundred ninety million, eight hundred eleven thousand, three hundred seventy".