981850 has 24 divisors (see below), whose sum is σ = 1858140. Its totient is φ = 385920.

The previous prime is 981823. The next prime is 981887. The reversal of 981850 is 58189.

It can be written as a sum of positive squares in 6 ways, for example, as 159201 + 822649 = 399^2 + 907^2 .

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3516 + ... + 3784.

2⁹⁸¹⁸⁵⁰ is an apocalyptic number.

981850 is a deficient number, since it is larger than the sum of its proper divisors (876290).

981850 is a wasteful number, since it uses less digits than its factorization.

981850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354 (or 349 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 31.

The square root of 981850 is about 990.8834442052. The cubic root of 981850 is about 99.3913023899.

The spelling of 981850 in words is "nine hundred eighty-one thousand, eight hundred fifty".