981534 has 16 divisors (see below), whose sum is σ = 2031120. Its totient is φ = 315840.

The previous prime is 981527. The next prime is 981569. The reversal of 981534 is 435189.

It is a congruent number.

It is an unprimeable number.

981534 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2647 + ... + 2994.

It is an arithmetic number, because the mean of its divisors is an integer number (126945).

2⁹⁸¹⁵³⁴ is an apocalyptic number.

981534 is an abundant number, since it is smaller than the sum of its proper divisors (1049586).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

981534 is a wasteful number, since it uses less digits than its factorization.

981534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5675.

The product of its digits is 4320, while the sum is 30.

The square root of 981534 is about 990.7239777052. The cubic root of 981534 is about 99.3806384997.

The spelling of 981534 in words is "nine hundred eighty-one thousand, five hundred thirty-four".