981937 has 16 divisors (see below), whose sum is σ = 1166400. Its totient is φ = 816640.

The previous prime is 981919. The next prime is 981941. The reversal of 981937 is 739189.

It is not a de Polignac number, because 981937 - 2⁷ = 981809 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 981896 and 981905.

It is not an unprimeable number, because it can be changed into a prime (981947) 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, 10989 + ... + 11077.

It is an arithmetic number, because the mean of its divisors is an integer number (72900).

2⁹⁸¹⁹³⁷ is an apocalyptic number.

It is an amenable number.

981937 is a deficient number, since it is larger than the sum of its proper divisors (184463).

981937 is a wasteful number, since it uses less digits than its factorization.

981937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176.

The product of its digits is 13608, while the sum is 37.

The square root of 981937 is about 990.9273434516. The cubic root of 981937 is about 99.3942379326.

The spelling of 981937 in words is "nine hundred eighty-one thousand, nine hundred thirty-seven".