623622 has 16 divisors (see below), whose sum is σ = 1301760. Its totient is φ = 198792.

The previous prime is 623621. The next prime is 623633. The reversal of 623622 is 226326.

It is a nude number because it is divisible by every one of its digits.

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 623622.

It is not an unprimeable number, because it can be changed into a prime (623621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2122 + ... + 2397.

It is an arithmetic number, because the mean of its divisors is an integer number (81360).

2⁶²³⁶²² is an apocalyptic number.

623622 is an abundant number, since it is smaller than the sum of its proper divisors (678138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

623622 is a wasteful number, since it uses less digits than its factorization.

623622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4547.

The product of its digits is 864, while the sum is 21.

The square root of 623622 is about 789.6974104048. The cubic root of 623622 is about 85.4359151809.

Adding to 623622 its reverse (226326), we get a palindrome (849948).

The spelling of 623622 in words is "six hundred twenty-three thousand, six hundred twenty-two".