623136 has 24 divisors (see below), whose sum is σ = 1635984. Its totient is φ = 207680.

The previous prime is 623107. The next prime is 623171. The reversal of 623136 is 631326.

It is a tau number, because it is divible by the number of its divisors (24).

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

It is a nialpdrome in base 16.

It is an unprimeable number.

623136 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3150 + ... + 3341.

It is an arithmetic number, because the mean of its divisors is an integer number (68166).

2⁶²³¹³⁶ is an apocalyptic number.

It is an amenable number.

623136 is an abundant number, since it is smaller than the sum of its proper divisors (1012848).

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

623136 is a wasteful number, since it uses less digits than its factorization.

623136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6504 (or 6496 counting only the distinct ones).

The product of its digits is 648, while the sum is 21.

The square root of 623136 is about 789.3896376315. The cubic root of 623136 is about 85.4137154906.

The spelling of 623136 in words is "six hundred twenty-three thousand, one hundred thirty-six".