97990202 has 8 divisors (see below), whose sum is σ = 147027636. Its totient is φ = 48980992.

The previous prime is 97990177. The next prime is 97990219. The reversal of 97990202 is 20209979.

It is a Cunningham number, because it is equal to 9899²+1.

It can be written as a sum of positive squares in 2 ways, for example, as 97990201 + 1 = 9899^2 + 1^2 .

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

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, 8378 + ... + 16314.

Almost surely, 2^97990202 is an apocalyptic number.

97990202 is a deficient number, since it is larger than the sum of its proper divisors (49037434).

97990202 is a wasteful number, since it uses less digits than its factorization.

97990202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14112.

The product of its (nonzero) digits is 20412, while the sum is 38.

The square root of 97990202 is about 9899.0000505102. Note that the first 4 decimals coincide. The cubic root of 97990202 is about 461.0282637091.

The spelling of 97990202 in words is "ninety-seven million, nine hundred ninety thousand, two hundred two".