981925 has 24 divisors (see below), whose sum is σ = 1444352. Its totient is φ = 648000.

The previous prime is 981919. The next prime is 981941. The reversal of 981925 is 529189.

It is not a de Polignac number, because 981925 - 2⁷ = 981797 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5335 + ... + 5515.

2⁹⁸¹⁹²⁵ is an apocalyptic number.

It is an amenable number.

981925 is a deficient number, since it is larger than the sum of its proper divisors (462427).

981925 is a wasteful number, since it uses less digits than its factorization.

981925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229 (or 224 counting only the distinct ones).

The product of its digits is 6480, while the sum is 34.

The square root of 981925 is about 990.9212884987. The cubic root of 981925 is about 99.3938330405.

The spelling of 981925 in words is "nine hundred eighty-one thousand, nine hundred twenty-five".