623547680 has 192 divisors, whose sum is σ = 1776079872. Its totient is φ = 202383360.

The previous prime is 623547679. The next prime is 623547697. The reversal of 623547680 is 86745326.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 1698857 + ... + 1699223.

It is an arithmetic number, because the mean of its divisors is an integer number (9250416).

Almost surely, 2^623547680 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 623547680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (888039936).

623547680 is an abundant number, since it is smaller than the sum of its proper divisors (1152532192).

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

623547680 is a wasteful number, since it uses less digits than its factorization.

623547680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467 (or 459 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 41.

The square root of 623547680 is about 24970.9367064994. The cubic root of 623547680 is about 854.3252111123.

The spelling of 623547680 in words is "six hundred twenty-three million, five hundred forty-seven thousand, six hundred eighty".