957998 has 4 divisors (see below), whose sum is σ = 1437000. Its totient is φ = 478998.

The previous prime is 957991. The next prime is 958007. The reversal of 957998 is 899759.

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

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 957998.

It is not an unprimeable number, because it can be changed into a prime (957991) by changing a digit.

957998 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239498 + ... + 239501.

It is an arithmetic number, because the mean of its divisors is an integer number (359250).

2⁹⁵⁷⁹⁹⁸ is an apocalyptic number.

957998 is a deficient number, since it is larger than the sum of its proper divisors (479002).

957998 is a wasteful number, since it uses less digits than its factorization.

957998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479001.

The product of its digits is 204120, while the sum is 47.

The square root of 957998 is about 978.7737225733. The cubic root of 957998 is about 98.5798608523.

The spelling of 957998 in words is "nine hundred fifty-seven thousand, nine hundred ninety-eight".