623397 has 4 divisors (see below), whose sum is σ = 831200. Its totient is φ = 415596.

The previous prime is 623393. The next prime is 623401. The reversal of 623397 is 793326.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (623393) and next prime (623401).

It is not a de Polignac number, because 623397 - 2² = 623393 is a prime.

It is a D-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 (623393) 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, 103897 + ... + 103902.

It is an arithmetic number, because the mean of its divisors is an integer number (207800).

2⁶²³³⁹⁷ is an apocalyptic number.

It is an amenable number.

623397 is a deficient number, since it is larger than the sum of its proper divisors (207803).

623397 is a wasteful number, since it uses less digits than its factorization.

623397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207802.

The product of its digits is 6804, while the sum is 30.

The square root of 623397 is about 789.5549379239. The cubic root of 623397 is about 85.4256389808.

The spelling of 623397 in words is "six hundred twenty-three thousand, three hundred ninety-seven".