990704704747 has 16 divisors (see below), whose sum is σ = 1039566674880. Its totient is φ = 943106516352.

The previous prime is 990704704727. The next prime is 990704704813. The reversal of 990704704747 is 747407407099.

It is a cyclic number.

It is not a de Polignac number, because 990704704747 - 2²⁷ = 990570487019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 990704704691 and 990704704700.

It is not an unprimeable number, because it can be changed into a prime (990704704727) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 373 + ... + 1407625.

It is an arithmetic number, because the mean of its divisors is an integer number (64972917180).

Almost surely, 2^990704704747 is an apocalyptic number.

990704704747 is a deficient number, since it is larger than the sum of its proper divisors (48861970133).

990704704747 is a wasteful number, since it uses less digits than its factorization.

990704704747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1407702.

The product of its (nonzero) digits is 12446784, while the sum is 58.

The spelling of 990704704747 in words is "nine hundred ninety billion, seven hundred four million, seven hundred four thousand, seven hundred forty-seven".