623957796 has 288 divisors, whose sum is σ = 2145024000. Its totient is φ = 153109440.

The previous prime is 623957773. The next prime is 623957809. The reversal of 623957796 is 697759326.

623957796 is a `hidden beast` number, since 62 + 3 + 9 + 577 + 9 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

Its product of digits (4286520) is a multiple of the sum of its prime factors (420).

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 1737865 + ... + 1738223.

It is an arithmetic number, because the mean of its divisors is an integer number (7448000).

Almost surely, 2^623957796 is an apocalyptic number.

623957796 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 623957796, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1072512000).

623957796 is an abundant number, since it is smaller than the sum of its proper divisors (1521066204).

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

623957796 is a wasteful number, since it uses less digits than its factorization.

623957796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420 (or 401 counting only the distinct ones).

The product of its digits is 4286520, while the sum is 54.

The square root of 623957796 is about 24979.1472232340. The cubic root of 623957796 is about 854.5124705968.

The spelling of 623957796 in words is "six hundred twenty-three million, nine hundred fifty-seven thousand, seven hundred ninety-six".