202072889 has 2 divisors, whose sum is σ = 202072890. Its totient is φ = 202072888.

The previous prime is 202072883. The next prime is 202072933. The reversal of 202072889 is 988270202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 153561664 + 48511225 = 12392^2 + 6965^2 .

It is a cyclic number.

It is not a de Polignac number, because 202072889 - 2¹² = 202068793 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (202072883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101036444 + 101036445.

It is an arithmetic number, because the mean of its divisors is an integer number (101036445).

Almost surely, 2^202072889 is an apocalyptic number.

It is an amenable number.

202072889 is a deficient number, since it is larger than the sum of its proper divisors (1).

202072889 is an equidigital number, since it uses as much as digits as its factorization.

202072889 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 202072889 is about 14215.2343983488. The cubic root of 202072889 is about 586.8169955598.

The spelling of 202072889 in words is "two hundred two million, seventy-two thousand, eight hundred eighty-nine".