609803623 has 32 divisors (see below), whose sum is σ = 767918592. Its totient is φ = 476150400.

The previous prime is 609803609. The next prime is 609803627. The reversal of 609803623 is 326308906.

It is a happy number.

It is not a de Polignac number, because 609803623 - 2⁹ = 609803111 is a prime.

It is a super-2 number, since 2×609803623² = 743720917247852258, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (609803627) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 119188 + ... + 124198.

It is an arithmetic number, because the mean of its divisors is an integer number (23997456).

Almost surely, 2^609803623 is an apocalyptic number.

609803623 is a deficient number, since it is larger than the sum of its proper divisors (158114969).

609803623 is a wasteful number, since it uses less digits than its factorization.

609803623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5095.

The product of its (nonzero) digits is 46656, while the sum is 37.

The square root of 609803623 is about 24694.2022142850. The cubic root of 609803623 is about 848.0015904021.

The spelling of 609803623 in words is "six hundred nine million, eight hundred three thousand, six hundred twenty-three".