99902210 has 8 divisors (see below), whose sum is σ = 179823996. Its totient is φ = 39960880.

The previous prime is 99902207. The next prime is 99902249. The reversal of 99902210 is 1220999.

It can be written as a sum of positive squares in 2 ways, for example, as 95785369 + 4116841 = 9787^2 + 2029^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4995101 + ... + 4995120.

Almost surely, 2^99902210 is an apocalyptic number.

99902210 is a deficient number, since it is larger than the sum of its proper divisors (79921786).

99902210 is a wasteful number, since it uses less digits than its factorization.

99902210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9990228.

The product of its (nonzero) digits is 2916, while the sum is 32.

The square root of 99902210 is about 9995.1093040547. The cubic root of 99902210 is about 464.0075336916.

The spelling of 99902210 in words is "ninety-nine million, nine hundred two thousand, two hundred ten".