623411680 has 24 divisors (see below), whose sum is σ = 1472810472. Its totient is φ = 249364608.

The previous prime is 623411627. The next prime is 623411681. The reversal of 623411680 is 86114326.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623411681) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1948002 + ... + 1948321.

It is an arithmetic number, because the mean of its divisors is an integer number (61367103).

Almost surely, 2^623411680 is an apocalyptic number.

It is an amenable number.

623411680 is an abundant number, since it is smaller than the sum of its proper divisors (849398792).

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

623411680 is a wasteful number, since it uses less digits than its factorization.

623411680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3896338 (or 3896330 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 623411680 is about 24968.2133922313. The cubic root of 623411680 is about 854.2630952118.

The spelling of 623411680 in words is "six hundred twenty-three million, four hundred eleven thousand, six hundred eighty".