981356 has 6 divisors (see below), whose sum is σ = 1717380. Its totient is φ = 490676.

The previous prime is 981319. The next prime is 981373. The reversal of 981356 is 653189.

It is an Ulam number.

It is an unprimeable 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 as a sum of consecutive naturals, namely, 122666 + ... + 122673.

It is an arithmetic number, because the mean of its divisors is an integer number (286230).

2⁹⁸¹³⁵⁶ is an apocalyptic number.

It is an amenable number.

981356 is a deficient number, since it is larger than the sum of its proper divisors (736024).

981356 is a wasteful number, since it uses less digits than its factorization.

981356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245343 (or 245341 counting only the distinct ones).

The product of its digits is 6480, while the sum is 32.

The square root of 981356 is about 990.6341403364. The cubic root of 981356 is about 99.3746306171.

The spelling of 981356 in words is "nine hundred eighty-one thousand, three hundred fifty-six".