84874 has 4 divisors (see below), whose sum is σ = 127314. Its totient is φ = 42436.

The previous prime is 84871. The next prime is 84913. The reversal of 84874 is 47848.

84874 = T₂₀₄ + T₂₀₅ + ... + T₂₀₇.

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., 42849 + 42025 = 207^2 + 205^2 .

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (84871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21217 + ... + 21220.

2⁸⁴⁸⁷⁴ is an apocalyptic number.

84874 is a deficient number, since it is larger than the sum of its proper divisors (42440).

84874 is a wasteful number, since it uses less digits than its factorization.

84874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42439.

The product of its digits is 7168, while the sum is 31.

The square root of 84874 is about 291.3314263858. The cubic root of 84874 is about 43.9465604665.

The spelling of 84874 in words is "eighty-four thousand, eight hundred seventy-four".