990699102 has 192 divisors, whose sum is σ = 2520460800. Its totient is φ = 279417600.

The previous prime is 990699097. The next prime is 990699119. The reversal of 990699102 is 201996099.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 9808852 + ... + 9808952.

It is an arithmetic number, because the mean of its divisors is an integer number (13127400).

Almost surely, 2^990699102 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 990699102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1260230400).

990699102 is an abundant number, since it is smaller than the sum of its proper divisors (1529761698).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

990699102 is a wasteful number, since it uses less digits than its factorization.

990699102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223 (or 220 counting only the distinct ones).

The product of its (nonzero) digits is 78732, while the sum is 45.

The square root of 990699102 is about 31475.3729445737. The cubic root of 990699102 is about 996.8900388346.

The spelling of 990699102 in words is "nine hundred ninety million, six hundred ninety-nine thousand, one hundred two".