916623 has 16 divisors (see below), whose sum is σ = 1438560. Its totient is φ = 574848.

The previous prime is 916621. The next prime is 916633. The reversal of 916623 is 326619.

It is a happy number.

It is not a de Polignac number, because 916623 - 2¹ = 916621 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 916623.

It is not an unprimeable number, because it can be changed into a prime (916621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 540 + ... + 1457.

It is an arithmetic number, because the mean of its divisors is an integer number (89910).

2⁹¹⁶⁶²³ is an apocalyptic number.

916623 is a deficient number, since it is larger than the sum of its proper divisors (521937).

916623 is a wasteful number, since it uses less digits than its factorization.

916623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2023 (or 2017 counting only the distinct ones).

The product of its digits is 1944, while the sum is 27.

The square root of 916623 is about 957.4043033118. The cubic root of 916623 is about 97.1397355439.

The spelling of 916623 in words is "nine hundred sixteen thousand, six hundred twenty-three".