623887671 has 8 divisors (see below), whose sum is σ = 907473024. Its totient is φ = 378113720.

The previous prime is 623887669. The next prime is 623887681. The reversal of 623887671 is 176788326.

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 623887671 - 2¹ = 623887669 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 623887671.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623887661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9452811 + ... + 9452876.

It is an arithmetic number, because the mean of its divisors is an integer number (113434128).

Almost surely, 2^623887671 is an apocalyptic number.

623887671 is a deficient number, since it is larger than the sum of its proper divisors (283585353).

623887671 is a wasteful number, since it uses less digits than its factorization.

623887671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18905701.

The product of its digits is 677376, while the sum is 48.

The square root of 623887671 is about 24977.7435129757. The cubic root of 623887671 is about 854.4804572500.

The spelling of 623887671 in words is "six hundred twenty-three million, eight hundred eighty-seven thousand, six hundred seventy-one".