626398 has 8 divisors (see below), whose sum is σ = 962640. Its totient is φ = 305520.

The previous prime is 626393. The next prime is 626443. The reversal of 626398 is 893626.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (626393) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3738 + ... + 3901.

It is an arithmetic number, because the mean of its divisors is an integer number (120330).

2⁶²⁶³⁹⁸ is an apocalyptic number.

626398 is a deficient number, since it is larger than the sum of its proper divisors (336242).

626398 is a wasteful number, since it uses less digits than its factorization.

626398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7682.

The product of its digits is 15552, while the sum is 34.

The square root of 626398 is about 791.4530939986. The cubic root of 626398 is about 85.5624977657.

It can be divided in two parts, 626 and 398, that added together give a 10-th power (1024 = 2¹⁰).

The spelling of 626398 in words is "six hundred twenty-six thousand, three hundred ninety-eight".