874681 has 2 divisors, whose sum is σ = 874682. Its totient is φ = 874680.

The previous prime is 874673. The next prime is 874693. The reversal of 874681 is 186478.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 826281 + 48400 = 909^2 + 220^2 .

It is a cyclic number.

It is not a de Polignac number, because 874681 - 2³ = 874673 is a prime.

It is a super-2 number, since 2×874681² = 1530133703522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (874651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 437340 + 437341.

It is an arithmetic number, because the mean of its divisors is an integer number (437341).

2⁸⁷⁴⁶⁸¹ is an apocalyptic number.

874681 is the 592-nd centered pentagonal number.

It is an amenable number.

874681 is a deficient number, since it is larger than the sum of its proper divisors (1).

874681 is an equidigital number, since it uses as much as digits as its factorization.

874681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10752, while the sum is 34.

The square root of 874681 is about 935.2438184773. The cubic root of 874681 is about 95.6349343916.

The spelling of 874681 in words is "eight hundred seventy-four thousand, six hundred eighty-one".