913983 has 16 divisors (see below), whose sum is σ = 1414656. Its totient is φ = 514080.

The previous prime is 913981. The next prime is 913999. The reversal of 913983 is 389319.

It is not a de Polignac number, because 913983 - 2¹ = 913981 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (913981) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1185 + ... + 1797.

It is an arithmetic number, because the mean of its divisors is an integer number (88416).

2⁹¹³⁹⁸³ is an apocalyptic number.

913983 is a deficient number, since it is larger than the sum of its proper divisors (500673).

913983 is a wasteful number, since it uses less digits than its factorization.

913983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 694.

The product of its digits is 5832, while the sum is 33.

The square root of 913983 is about 956.0245812739. The cubic root of 913983 is about 97.0463872793.

The spelling of 913983 in words is "nine hundred thirteen thousand, nine hundred eighty-three".