45639323 has 2 divisors, whose sum is σ = 45639324. Its totient is φ = 45639322.

The previous prime is 45639317. The next prime is 45639343. The reversal of 45639323 is 32393654.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45639323 - 2²⁰ = 44590747 is a prime.

It is not a weakly prime, because it can be changed into another prime (45639313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22819661 + 22819662.

It is an arithmetic number, because the mean of its divisors is an integer number (22819662).

Almost surely, 2^45639323 is an apocalyptic number.

45639323 is a deficient number, since it is larger than the sum of its proper divisors (1).

45639323 is an equidigital number, since it uses as much as digits as its factorization.

45639323 is an evil number, because the sum of its binary digits is even.

The product of its digits is 58320, while the sum is 35.

The square root of 45639323 is about 6755.6881958835. The cubic root of 45639323 is about 357.3658629245.

The spelling of 45639323 in words is "forty-five million, six hundred thirty-nine thousand, three hundred twenty-three".