939998 has 8 divisors (see below), whose sum is σ = 1492992. Its totient is φ = 442336.

The previous prime is 939997. The next prime is 940001. The reversal of 939998 is 899939.

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 an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 939998.

It is not an unprimeable number, because it can be changed into a prime (939997) 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, 13790 + ... + 13857.

It is an arithmetic number, because the mean of its divisors is an integer number (186624).

2⁹³⁹⁹⁹⁸ is an apocalyptic number.

939998 is a deficient number, since it is larger than the sum of its proper divisors (552994).

939998 is a wasteful number, since it uses less digits than its factorization.

939998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27666.

The product of its digits is 157464, while the sum is 47.

The square root of 939998 is about 969.5349400615. The cubic root of 939998 is about 97.9585413973.

The spelling of 939998 in words is "nine hundred thirty-nine thousand, nine hundred ninety-eight".