623958 has 8 divisors (see below), whose sum is σ = 1247928. Its totient is φ = 207984.

The previous prime is 623957. The next prime is 623963. The reversal of 623958 is 859326.

It is a happy number.

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

623958 is an admirable number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623957) 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, 51991 + ... + 52002.

It is an arithmetic number, because the mean of its divisors is an integer number (155991).

2⁶²³⁹⁵⁸ is an apocalyptic number.

623958 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

623958 is a wasteful number, since it uses less digits than its factorization.

623958 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103998.

The product of its digits is 12960, while the sum is 33.

The square root of 623958 is about 789.9101214695. The cubic root of 623958 is about 85.4512563723.

The spelling of 623958 in words is "six hundred twenty-three thousand, nine hundred fifty-eight".