623665952 has 96 divisors (see below), whose sum is σ = 1536401664. Its totient is φ = 242611200.

The previous prime is 623665951. The next prime is 623665957. The reversal of 623665952 is 259566326.

It is not an unprimeable number, because it can be changed into a prime (623665951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 175877 + ... + 179387.

It is an arithmetic number, because the mean of its divisors is an integer number (16004184).

Almost surely, 2^623665952 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 623665952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (768200832).

623665952 is an abundant number, since it is smaller than the sum of its proper divisors (912735712).

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

623665952 is a wasteful number, since it uses less digits than its factorization.

623665952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3602 (or 3594 counting only the distinct ones).

The product of its digits is 583200, while the sum is 44.

The square root of 623665952 is about 24973.3047873124. The cubic root of 623665952 is about 854.3792226802.

The spelling of 623665952 in words is "six hundred twenty-three million, six hundred sixty-five thousand, nine hundred fifty-two".