623916898 has 48 divisors (see below), whose sum is σ = 1094855328. Its totient is φ = 266587200.

The previous prime is 623916871. The next prime is 623916899. The reversal of 623916898 is 898619326.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (623916899) 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 23 ways as a sum of consecutive naturals, for example, 768913 + ... + 769723.

It is an arithmetic number, because the mean of its divisors is an integer number (22809486).

Almost surely, 2^623916898 is an apocalyptic number.

623916898 is a deficient number, since it is larger than the sum of its proper divisors (470938430).

623916898 is a wasteful number, since it uses less digits than its factorization.

623916898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 880 (or 841 counting only the distinct ones).

The product of its digits is 1119744, while the sum is 52.

The square root of 623916898 is about 24978.3285669798. The cubic root of 623916898 is about 854.4938002023.

The spelling of 623916898 in words is "six hundred twenty-three million, nine hundred sixteen thousand, eight hundred ninety-eight".