99990002 has 16 divisors (see below), whose sum is σ = 173016000. Its totient is φ = 42451728.

The previous prime is 99990001. The next prime is 99990029. The reversal of 99990002 is 20009999.

It is not an unprimeable number, because it can be changed into a prime (99990001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31877 + ... + 34872.

It is an arithmetic number, because the mean of its divisors is an integer number (10813500).

Almost surely, 2^99990002 is an apocalyptic number.

99990002 is a deficient number, since it is larger than the sum of its proper divisors (73025998).

99990002 is a wasteful number, since it uses less digits than its factorization.

99990002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66865.

The product of its (nonzero) digits is 13122, while the sum is 38.

The square root of 99990002 is about 9999.5000875044. The cubic root of 99990002 is about 464.1434139773.

It can be divided in two parts, 999 and 90002, that multiplied together give a palindrome (89911998).

The spelling of 99990002 in words is "ninety-nine million, nine hundred ninety thousand, two".