623443606 has 4 divisors (see below), whose sum is σ = 935165412. Its totient is φ = 311721802.

The previous prime is 623443559. The next prime is 623443631. The reversal of 623443606 is 606344326.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155860900 + ... + 155860903.

It is an arithmetic number, because the mean of its divisors is an integer number (233791353).

Almost surely, 2^623443606 is an apocalyptic number.

623443606 is a deficient number, since it is larger than the sum of its proper divisors (311721806).

623443606 is a wasteful number, since it uses less digits than its factorization.

623443606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311721805.

The product of its (nonzero) digits is 62208, while the sum is 34.

The square root of 623443606 is about 24968.8527169352. The cubic root of 623443606 is about 854.2776777308.

The spelling of 623443606 in words is "six hundred twenty-three million, four hundred forty-three thousand, six hundred six".