623108646 has 16 divisors (see below), whose sum is σ = 1384686000. Its totient is φ = 207702864.

The previous prime is 623108621. The next prime is 623108671. The reversal of 623108646 is 646801326.

623108646 is a `hidden beast` number, since 6 + 2 + 3 + 1 + 0 + 8 + 646 = 666.

It is an interprime number because it is at equal distance from previous prime (623108621) and next prime (623108671).

It is a self number, because there is not a number n which added to its sum of digits gives 623108646.

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, 5769471 + ... + 5769578.

It is an arithmetic number, because the mean of its divisors is an integer number (86542875).

Almost surely, 2^623108646 is an apocalyptic number.

623108646 is an abundant number, since it is smaller than the sum of its proper divisors (761577354).

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

623108646 is a wasteful number, since it uses less digits than its factorization.

623108646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11539060 (or 11539054 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 623108646 is about 24962.1442588573. The cubic root of 623108646 is about 854.1246566127.

The spelling of 623108646 in words is "six hundred twenty-three million, one hundred eight thousand, six hundred forty-six".