625879 has 4 divisors (see below), whose sum is σ = 658840. Its totient is φ = 592920.

The previous prime is 625871. The next prime is 625883. The reversal of 625879 is 978526.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 978526 = 2 ⋅489263.

It is a cyclic number.

It is not a de Polignac number, because 625879 - 2³ = 625871 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (625871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16452 + ... + 16489.

It is an arithmetic number, because the mean of its divisors is an integer number (164710).

2⁶²⁵⁸⁷⁹ is an apocalyptic number.

625879 is a deficient number, since it is larger than the sum of its proper divisors (32961).

625879 is a wasteful number, since it uses less digits than its factorization.

625879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32960.

The product of its digits is 30240, while the sum is 37.

The square root of 625879 is about 791.1251481277. The cubic root of 625879 is about 85.5388603943.

The spelling of 625879 in words is "six hundred twenty-five thousand, eight hundred seventy-nine".