623401886 has 8 divisors (see below), whose sum is σ = 935316720. Its totient is φ = 311629648.

The previous prime is 623401873. The next prime is 623401897. The reversal of 623401886 is 688104326.

It is a happy number.

623401886 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×623401886² = 777259822936713992, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23951 + ... + 42666.

It is an arithmetic number, because the mean of its divisors is an integer number (116914590).

Almost surely, 2^623401886 is an apocalyptic number.

623401886 is a deficient number, since it is larger than the sum of its proper divisors (311914834).

623401886 is a wasteful number, since it uses less digits than its factorization.

623401886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71298.

The product of its (nonzero) digits is 55296, while the sum is 38.

The square root of 623401886 is about 24968.0172620895. The cubic root of 623401886 is about 854.2586216048.

The spelling of 623401886 in words is "six hundred twenty-three million, four hundred one thousand, eight hundred eighty-six".