623941 has 4 divisors (see below), whose sum is σ = 656800. Its totient is φ = 591084.

The previous prime is 623933. The next prime is 623947. The reversal of 623941 is 149326.

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 a cyclic number.

It is not a de Polignac number, because 623941 - 2³ = 623933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623947) 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, 16401 + ... + 16438.

It is an arithmetic number, because the mean of its divisors is an integer number (164200).

2⁶²³⁹⁴¹ is an apocalyptic number.

It is an amenable number.

623941 is a deficient number, since it is larger than the sum of its proper divisors (32859).

623941 is a wasteful number, since it uses less digits than its factorization.

623941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32858.

The product of its digits is 1296, while the sum is 25.

The square root of 623941 is about 789.8993606783. The cubic root of 623941 is about 85.4504803134.

The spelling of 623941 in words is "six hundred twenty-three thousand, nine hundred forty-one".