623440795 has 4 divisors (see below), whose sum is σ = 748128960. Its totient is φ = 498752632.

The previous prime is 623440751. The next prime is 623440799. The reversal of 623440795 is 597044326.

It is a happy number.

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 623440795 - 2⁷ = 623440667 is a prime.

It is not an unprimeable number, because it can be changed into a prime (623440799) 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, 62344075 + ... + 62344084.

It is an arithmetic number, because the mean of its divisors is an integer number (187032240).

Almost surely, 2^623440795 is an apocalyptic number.

623440795 is a deficient number, since it is larger than the sum of its proper divisors (124688165).

623440795 is a wasteful number, since it uses less digits than its factorization.

623440795 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124688164.

The product of its (nonzero) digits is 181440, while the sum is 40.

The square root of 623440795 is about 24968.7964267403. The cubic root of 623440795 is about 854.2763937985.

The spelling of 623440795 in words is "six hundred twenty-three million, four hundred forty thousand, seven hundred ninety-five".