981874 has 4 divisors (see below), whose sum is σ = 1472814. Its totient is φ = 490936.

The previous prime is 981823. The next prime is 981887. The reversal of 981874 is 478189.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 651249 + 330625 = 807^2 + 575^2 .

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 as a sum of consecutive naturals, namely, 245467 + ... + 245470.

2⁹⁸¹⁸⁷⁴ is an apocalyptic number.

981874 is a deficient number, since it is larger than the sum of its proper divisors (490940).

981874 is a wasteful number, since it uses less digits than its factorization.

981874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490939.

The product of its digits is 16128, while the sum is 37.

The square root of 981874 is about 990.8955545364. The cubic root of 981874 is about 99.3921122121.

The spelling of 981874 in words is "nine hundred eighty-one thousand, eight hundred seventy-four".