202202989 has 4 divisors (see below), whose sum is σ = 202776156. Its totient is φ = 201629824.

The previous prime is 202202933. The next prime is 202203007. The reversal of 202202989 is 989202202.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 109369764 + 92833225 = 10458^2 + 9635^2 .

It is a cyclic number.

It is not a de Polignac number, because 202202989 - 2¹⁷ = 202071917 is a prime.

It is a super-3 number, since 3×202202989³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202202489) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 286054 + ... + 286759.

It is an arithmetic number, because the mean of its divisors is an integer number (50694039).

Almost surely, 2^202202989 is an apocalyptic number.

It is an amenable number.

202202989 is a deficient number, since it is larger than the sum of its proper divisors (573167).

202202989 is an equidigital number, since it uses as much as digits as its factorization.

202202989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 573166.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 202202989 is about 14219.8097385303. The cubic root of 202202989 is about 586.9429047685.

The spelling of 202202989 in words is "two hundred two million, two hundred two thousand, nine hundred eighty-nine".