623243712 has 112 divisors (see below), whose sum is σ = 2029594112. Its totient is φ = 164367360.

The previous prime is 623243693. The next prime is 623243713. The reversal of 623243712 is 217342326.

It is a tau number, because it is divible by the number of its divisors (112).

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

It is a self number, because there is not a number n which added to its sum of digits gives 623243712.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623243713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 364 + ... + 35307.

It is an arithmetic number, because the mean of its divisors is an integer number (18121376).

Almost surely, 2^623243712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 623243712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1014797056).

623243712 is an abundant number, since it is smaller than the sum of its proper divisors (1406350400).

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

623243712 is a wasteful number, since it uses less digits than its factorization.

623243712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35706 (or 35696 counting only the distinct ones).

The product of its digits is 12096, while the sum is 30.

The square root of 623243712 is about 24964.8495288876. The cubic root of 623243712 is about 854.1863659509.

The spelling of 623243712 in words is "six hundred twenty-three million, two hundred forty-three thousand, seven hundred twelve".