981837 has 12 divisors (see below), whose sum is σ = 1431040. Its totient is φ = 648648.

The previous prime is 981823. The next prime is 981887. The reversal of 981837 is 738189.

It is not a de Polignac number, because 981837 - 2¹⁴ = 965453 is a prime.

It is a Duffinian number.

981837 is a lucky 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 981837.

It is not an unprimeable number, because it can be changed into a prime (981817) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 714 + ... + 1572.

2⁹⁸¹⁸³⁷ is an apocalyptic number.

It is an amenable number.

981837 is a deficient number, since it is larger than the sum of its proper divisors (449203).

981837 is a wasteful number, since it uses less digits than its factorization.

981837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 992 (or 989 counting only the distinct ones).

The product of its digits is 12096, while the sum is 36.

The square root of 981837 is about 990.8768843807. The cubic root of 981837 is about 99.3908637307.

The spelling of 981837 in words is "nine hundred eighty-one thousand, eight hundred thirty-seven".