623401895 has 8 divisors (see below), whose sum is σ = 748423104. Its totient is φ = 498494304.

The previous prime is 623401873. The next prime is 623401897. The reversal of 623401895 is 598104326.

It is a happy number.

623401895 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 cyclic number.

It is not a de Polignac number, because 623401895 - 2¹² = 623397799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623401897) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15824 + ... + 38693.

It is an arithmetic number, because the mean of its divisors is an integer number (93552888).

Almost surely, 2^623401895 is an apocalyptic number.

623401895 is a deficient number, since it is larger than the sum of its proper divisors (125021209).

623401895 is a wasteful number, since it uses less digits than its factorization.

623401895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56809.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 623401895 is about 24968.0174423201. The cubic root of 623401895 is about 854.2586257158.

The spelling of 623401895 in words is "six hundred twenty-three million, four hundred one thousand, eight hundred ninety-five".