445713623 has 4 divisors (see below), whose sum is σ = 454123368. Its totient is φ = 437303880.

The previous prime is 445713617. The next prime is 445713637. The reversal of 445713623 is 326317544.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 445713623 - 2²⁰ = 444665047 is a prime.

It is a super-2 number, since 2×445713623² = 397321267455572258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445713613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4204793 + ... + 4204898.

It is an arithmetic number, because the mean of its divisors is an integer number (113530842).

Almost surely, 2^445713623 is an apocalyptic number.

445713623 is a deficient number, since it is larger than the sum of its proper divisors (8409745).

445713623 is an equidigital number, since it uses as much as digits as its factorization.

445713623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8409744.

The product of its digits is 60480, while the sum is 35.

The square root of 445713623 is about 21111.9308212205. The cubic root of 445713623 is about 763.8685613775.

The spelling of 445713623 in words is "four hundred forty-five million, seven hundred thirteen thousand, six hundred twenty-three".