623796390 has 80 divisors (see below), whose sum is σ = 1916953632. Its totient is φ = 142580736.

The previous prime is 623796389. The next prime is 623796451. The reversal of 623796390 is 93697326.

623796390 is a `hidden beast` number, since 6 + 2 + 3 + 7 + 9 + 639 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

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 39 ways as a sum of consecutive naturals, for example, 49339 + ... + 60678.

Almost surely, 2^623796390 is an apocalyptic number.

623796390 is an abundant number, since it is smaller than the sum of its proper divisors (1293157242).

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

623796390 is a wasteful number, since it uses less digits than its factorization.

623796390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110043 (or 110034 counting only the distinct ones).

The product of its (nonzero) digits is 367416, while the sum is 45.

The square root of 623796390 is about 24975.9161994110. The cubic root of 623796390 is about 854.4387822079.

The spelling of 623796390 in words is "six hundred twenty-three million, seven hundred ninety-six thousand, three hundred ninety".