623401896 has 128 divisors (see below), whose sum is σ = 1724567040. Its totient is φ = 186624000.

The previous prime is 623401873. The next prime is 623401897. The reversal of 623401896 is 698104326.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (623401897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2300241 + ... + 2300511.

It is an arithmetic number, because the mean of its divisors is an integer number (13473180).

Almost surely, 2^623401896 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 623401896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (862283520).

623401896 is an abundant number, since it is smaller than the sum of its proper divisors (1101165144).

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

623401896 is a wasteful number, since it uses less digits than its factorization.

623401896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467 (or 463 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 623401896 is about 24968.0174623457. The cubic root of 623401896 is about 854.2586261725.

The spelling of 623401896 in words is "six hundred twenty-three million, four hundred one thousand, eight hundred ninety-six".