99990699 has 16 divisors (see below), whose sum is σ = 135574560. Its totient is φ = 65542400.

The previous prime is 99990679. The next prime is 99990703. The reversal of 99990699 is 99609999.

It is a cyclic number.

It is not a de Polignac number, because 99990699 - 2⁷ = 99990571 is a prime.

It is not an unprimeable number, because it can be changed into a prime (99990679) 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, 51649 + ... + 53549.

It is an arithmetic number, because the mean of its divisors is an integer number (8473410).

Almost surely, 2^99990699 is an apocalyptic number.

99990699 is a deficient number, since it is larger than the sum of its proper divisors (35583861).

99990699 is a wasteful number, since it uses less digits than its factorization.

99990699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2190.

The product of its (nonzero) digits is 3188646, while the sum is 60.

The square root of 99990699 is about 9999.5349391859. The cubic root of 99990699 is about 464.1444924425.

The spelling of 99990699 in words is "ninety-nine million, nine hundred ninety thousand, six hundred ninety-nine".