623875 has 32 divisors (see below), whose sum is σ = 958464. Its totient is φ = 396000.

The previous prime is 623869. The next prime is 623879. The reversal of 623875 is 578326.

It is not a de Polignac number, because 623875 - 2³ = 623867 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

623875 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (623879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20110 + ... + 20140.

It is an arithmetic number, because the mean of its divisors is an integer number (29952).

2⁶²³⁸⁷⁵ is an apocalyptic number.

623875 is a deficient number, since it is larger than the sum of its proper divisors (334589).

623875 is a wasteful number, since it uses less digits than its factorization.

623875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76 (or 66 counting only the distinct ones).

The product of its digits is 10080, while the sum is 31.

The square root of 623875 is about 789.8575820995. The cubic root of 623875 is about 85.4474672451.

The spelling of 623875 in words is "six hundred twenty-three thousand, eight hundred seventy-five".