34445989 has 2 divisors, whose sum is σ = 34445990. Its totient is φ = 34445988.

The previous prime is 34445953. The next prime is 34446023. The reversal of 34445989 is 98954443.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31169889 + 3276100 = 5583^2 + 1810^2 .

It is a cyclic number.

It is not a de Polignac number, because 34445989 - 2⁷ = 34445861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34445909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17222994 + 17222995.

It is an arithmetic number, because the mean of its divisors is an integer number (17222995).

Almost surely, 2^34445989 is an apocalyptic number.

It is an amenable number.

34445989 is a deficient number, since it is larger than the sum of its proper divisors (1).

34445989 is an equidigital number, since it uses as much as digits as its factorization.

34445989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 622080, while the sum is 46.

The square root of 34445989 is about 5869.0705397022. The cubic root of 34445989 is about 325.3715325072.

The spelling of 34445989 in words is "thirty-four million, four hundred forty-five thousand, nine hundred eighty-nine".