623665486 has 16 divisors (see below), whose sum is σ = 947946384. Its totient is φ = 307692864.

The previous prime is 623665457. The next prime is 623665531. The reversal of 623665486 is 684566326.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 169660 + ... + 173296.

It is an arithmetic number, because the mean of its divisors is an integer number (59246649).

Almost surely, 2^623665486 is an apocalyptic number.

623665486 is a deficient number, since it is larger than the sum of its proper divisors (324280898).

623665486 is a wasteful number, since it uses less digits than its factorization.

623665486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4755.

The product of its digits is 1244160, while the sum is 46.

The square root of 623665486 is about 24973.2954573480. The cubic root of 623665486 is about 854.3790098842.

The spelling of 623665486 in words is "six hundred twenty-three million, six hundred sixty-five thousand, four hundred eighty-six".