1623726573 has 12 divisors (see below), whose sum is σ = 2518433280. Its totient is φ = 927843672.

The previous prime is 1623726527. The next prime is 1623726583. The reversal of 1623726573 is 3756273261.

It is not a de Polignac number, because 1623726573 - 2⁸ = 1623726317 is a prime.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1623726523) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5522733 + ... + 5523026.

It is an arithmetic number, because the mean of its divisors is an integer number (209869440).

Almost surely, 2^1623726573 is an apocalyptic number.

It is an amenable number.

1623726573 is a deficient number, since it is larger than the sum of its proper divisors (894706707).

1623726573 is a wasteful number, since it uses less digits than its factorization.

1623726573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11045776 (or 11045769 counting only the distinct ones).

The product of its digits is 317520, while the sum is 42.

The square root of 1623726573 is about 40295.4907278718. The cubic root of 1623726573 is about 1175.3601607256.

The spelling of 1623726573 in words is "one billion, six hundred twenty-three million, seven hundred twenty-six thousand, five hundred seventy-three".