623713280 has 88 divisors (see below), whose sum is σ = 1531516272. Its totient is φ = 243597312.

The previous prime is 623713261. The next prime is 623713283. The reversal of 623713280 is 82317326.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623713283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 218744 + ... + 221576.

It is an arithmetic number, because the mean of its divisors is an integer number (17403594).

Almost surely, 2^623713280 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 623713280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (765758136).

623713280 is an abundant number, since it is smaller than the sum of its proper divisors (907802992).

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

623713280 is a wasteful number, since it uses less digits than its factorization.

623713280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2901 (or 2883 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 623713280 is about 24974.2523411613. The cubic root of 623713280 is about 854.4008341625.

The spelling of 623713280 in words is "six hundred twenty-three million, seven hundred thirteen thousand, two hundred eighty".