623469648 has 80 divisors (see below), whose sum is σ = 1769172480. Its totient is φ = 188318592.

The previous prime is 623469643. The next prime is 623469677. The reversal of 623469648 is 846964326.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 623469597 and 623469606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623469643) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 6115 + ... + 35837.

It is an arithmetic number, because the mean of its divisors is an integer number (22114656).

Almost surely, 2^623469648 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 623469648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (884586240).

623469648 is an abundant number, since it is smaller than the sum of its proper divisors (1145702832).

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

623469648 is a wasteful number, since it uses less digits than its factorization.

623469648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29776 (or 29770 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 48.

The square root of 623469648 is about 24969.3742012090. The cubic root of 623469648 is about 854.2895723055.

The spelling of 623469648 in words is "six hundred twenty-three million, four hundred sixty-nine thousand, six hundred forty-eight".