623508672 has 56 divisors (see below), whose sum is σ = 1654852672. Its totient is φ = 207187200.

The previous prime is 623508649. The next prime is 623508703. The reversal of 623508672 is 276805326.

It is a self number, because there is not a number n which added to its sum of digits gives 623508672.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58647 + ... + 68457.

Almost surely, 2^623508672 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 623508672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (827426336).

623508672 is an abundant number, since it is smaller than the sum of its proper divisors (1031344000).

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

623508672 is a wasteful number, since it uses less digits than its factorization.

623508672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10157 (or 10147 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 39.

The square root of 623508672 is about 24970.1556262671. The cubic root of 623508672 is about 854.3073957343.

The spelling of 623508672 in words is "six hundred twenty-three million, five hundred eight thousand, six hundred seventy-two".