34331989 has 2 divisors, whose sum is σ = 34331990. Its totient is φ = 34331988.

The previous prime is 34331987. The next prime is 34332019. The reversal of 34331989 is 98913343.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25421764 + 8910225 = 5042^2 + 2985^2 .

It is a cyclic number.

It is not a de Polignac number, because 34331989 - 2¹ = 34331987 is a prime.

It is a super-2 number, since 2×34331989² = 2357370937392242, which contains 22 as substring.

Together with 34331987, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34331981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17165994 + 17165995.

It is an arithmetic number, because the mean of its divisors is an integer number (17165995).

Almost surely, 2^34331989 is an apocalyptic number.

It is an amenable number.

34331989 is a deficient number, since it is larger than the sum of its proper divisors (1).

34331989 is an equidigital number, since it uses as much as digits as its factorization.

34331989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69984, while the sum is 40.

The square root of 34331989 is about 5859.3505612824. The cubic root of 34331989 is about 325.0121936253.

The spelling of 34331989 in words is "thirty-four million, three hundred thirty-one thousand, nine hundred eighty-nine".