623887 has 8 divisors (see below), whose sum is σ = 696960. Its totient is φ = 553560.

The previous prime is 623881. The next prime is 623893. The reversal of 623887 is 788326.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (623881) and next prime (623893).

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 623887 - 2³ = 623879 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623881) 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, 187 + ... + 1132.

It is an arithmetic number, because the mean of its divisors is an integer number (87120).

2⁶²³⁸⁸⁷ is an apocalyptic number.

623887 is a deficient number, since it is larger than the sum of its proper divisors (73073).

623887 is a wasteful number, since it uses less digits than its factorization.

623887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1373.

The product of its digits is 16128, while the sum is 34.

The square root of 623887 is about 789.8651783691. The cubic root of 623887 is about 85.4480150915.

The spelling of 623887 in words is "six hundred twenty-three thousand, eight hundred eighty-seven".