632345489 has 2 divisors, whose sum is σ = 632345490. Its totient is φ = 632345488.

The previous prime is 632345477. The next prime is 632345561. The reversal of 632345489 is 984543236.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 620408464 + 11937025 = 24908^2 + 3455^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-632345489 is a prime.

It is not a weakly prime, because it can be changed into another prime (632545489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 316172744 + 316172745.

It is an arithmetic number, because the mean of its divisors is an integer number (316172745).

Almost surely, 2^632345489 is an apocalyptic number.

It is an amenable number.

632345489 is a deficient number, since it is larger than the sum of its proper divisors (1).

632345489 is an equidigital number, since it uses as much as digits as its factorization.

632345489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 622080, while the sum is 44.

The square root of 632345489 is about 25146.4806483929. The cubic root of 632345489 is about 858.3244322534.

The spelling of 632345489 in words is "six hundred thirty-two million, three hundred forty-five thousand, four hundred eighty-nine".