623741825 has 36 divisors (see below), whose sum is σ = 902442240. Its totient is φ = 426414240.

The previous prime is 623741821. The next prime is 623741837. The reversal of 623741825 is 528147326.

It is a happy number.

It is not a de Polignac number, because 623741825 - 2² = 623741821 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (623741821) 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 35 ways as a sum of consecutive naturals, for example, 586244 + ... + 587306.

It is an arithmetic number, because the mean of its divisors is an integer number (25067840).

Almost surely, 2^623741825 is an apocalyptic number.

It is an amenable number.

623741825 is a deficient number, since it is larger than the sum of its proper divisors (278700415).

623741825 is a wasteful number, since it uses less digits than its factorization.

623741825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1566 (or 1554 counting only the distinct ones).

The product of its digits is 80640, while the sum is 38.

The square root of 623741825 is about 24974.8238232024. The cubic root of 623741825 is about 854.4138681962.

The spelling of 623741825 in words is "six hundred twenty-three million, seven hundred forty-one thousand, eight hundred twenty-five".