913998 has 16 divisors (see below), whose sum is σ = 1837440. Its totient is φ = 303096.

The previous prime is 913981. The next prime is 913999. The reversal of 913998 is 899319.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (913999) by changing a digit.

913998 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 in 7 ways as a sum of consecutive naturals, for example, 1863 + ... + 2301.

It is an arithmetic number, because the mean of its divisors is an integer number (114840).

2⁹¹³⁹⁹⁸ is an apocalyptic number.

913998 is an abundant number, since it is smaller than the sum of its proper divisors (923442).

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

913998 is a wasteful number, since it uses less digits than its factorization.

913998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 791.

The product of its digits is 17496, while the sum is 39.

The square root of 913998 is about 956.0324262283. The cubic root of 913998 is about 97.0469181746.

The spelling of 913998 in words is "nine hundred thirteen thousand, nine hundred ninety-eight".