202772989 has 2 divisors, whose sum is σ = 202772990. Its totient is φ = 202772988.

The previous prime is 202772951. The next prime is 202773031. The reversal of 202772989 is 989277202.

202772989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 200647225 + 2125764 = 14165^2 + 1458^2 .

It is a cyclic number.

It is not a de Polignac number, because 202772989 - 2⁷ = 202772861 is a prime.

It is a super-2 number, since 2×202772989² = 82233770135988242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202772909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101386494 + 101386495.

It is an arithmetic number, because the mean of its divisors is an integer number (101386495).

Almost surely, 2^202772989 is an apocalyptic number.

It is an amenable number.

202772989 is a deficient number, since it is larger than the sum of its proper divisors (1).

202772989 is an equidigital number, since it uses as much as digits as its factorization.

202772989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 254016, while the sum is 46.

The square root of 202772989 is about 14239.8380959897. The cubic root of 202772989 is about 587.4939081306.

The spelling of 202772989 in words is "two hundred two million, seven hundred seventy-two thousand, nine hundred eighty-nine".