902069489 has 2 divisors, whose sum is σ = 902069490. Its totient is φ = 902069488.

The previous prime is 902069477. The next prime is 902069491. The reversal of 902069489 is 984960209.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 639078400 + 262991089 = 25280^2 + 16217^2 .

It is a cyclic number.

It is not a de Polignac number, because 902069489 - 2²⁴ = 885292273 is a prime.

It is a super-2 number, since 2×902069489² = 1627458725969442242, which contains 22 as substring.

Together with 902069491, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (902069689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 451034744 + 451034745.

It is an arithmetic number, because the mean of its divisors is an integer number (451034745).

Almost surely, 2^902069489 is an apocalyptic number.

It is an amenable number.

902069489 is a deficient number, since it is larger than the sum of its proper divisors (1).

902069489 is an equidigital number, since it uses as much as digits as its factorization.

902069489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 279936, while the sum is 47.

The square root of 902069489 is about 30034.4716783898. The cubic root of 902069489 is about 966.2288439164.

The spelling of 902069489 in words is "nine hundred two million, sixty-nine thousand, four hundred eighty-nine".