626387 has 4 divisors (see below), whose sum is σ = 628056. Its totient is φ = 624720.

The previous prime is 626377. The next prime is 626389. The reversal of 626387 is 783626.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 626387 - 2⁶ = 626323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (626389) 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, 23 + ... + 1119.

It is an arithmetic number, because the mean of its divisors is an integer number (157014).

2⁶²⁶³⁸⁷ is an apocalyptic number.

626387 is a deficient number, since it is larger than the sum of its proper divisors (1669).

626387 is a wasteful number, since it uses less digits than its factorization.

626387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1668.

The product of its digits is 12096, while the sum is 32.

The square root of 626387 is about 791.4461447250. The cubic root of 626387 is about 85.5619969164.

The spelling of 626387 in words is "six hundred twenty-six thousand, three hundred eighty-seven".