981927 has 6 divisors (see below), whose sum is σ = 1418352. Its totient is φ = 654612.

The previous prime is 981919. The next prime is 981941. The reversal of 981927 is 729189.

It is a happy number.

It is not a de Polignac number, because 981927 - 2³ = 981919 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 981891 and 981900.

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 54543 + ... + 54560.

It is an arithmetic number, because the mean of its divisors is an integer number (236392).

2⁹⁸¹⁹²⁷ is an apocalyptic number.

981927 is a deficient number, since it is larger than the sum of its proper divisors (436425).

981927 is a wasteful number, since it uses less digits than its factorization.

981927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109109 (or 109106 counting only the distinct ones).

The product of its digits is 9072, while the sum is 36.

The square root of 981927 is about 990.9222976601. The cubic root of 981927 is about 99.3939005227.

It can be divided in two parts, 98 and 1927, that added together give a square (2025 = 45²).

The spelling of 981927 in words is "nine hundred eighty-one thousand, nine hundred twenty-seven".