32315389 has 2 divisors, whose sum is σ = 32315390. Its totient is φ = 32315388.

The previous prime is 32315363. The next prime is 32315417. The reversal of 32315389 is 98351323.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30580900 + 1734489 = 5530^2 + 1317^2 .

It is a cyclic number.

It is not a de Polignac number, because 32315389 - 2²³ = 23926781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32315089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16157694 + 16157695.

It is an arithmetic number, because the mean of its divisors is an integer number (16157695).

Almost surely, 2^32315389 is an apocalyptic number.

It is an amenable number.

32315389 is a deficient number, since it is larger than the sum of its proper divisors (1).

32315389 is an equidigital number, since it uses as much as digits as its factorization.

32315389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19440, while the sum is 34.

The square root of 32315389 is about 5684.6626109207. The cubic root of 32315389 is about 318.5198207999.

The spelling of 32315389 in words is "thirty-two million, three hundred fifteen thousand, three hundred eighty-nine".