874965861 has 32 divisors (see below), whose sum is σ = 1616102400. Its totient is φ = 454526640.

The previous prime is 874965859. The next prime is 874965863. The reversal of 874965861 is 168569478.

It is an interprime number because it is at equal distance from previous prime (874965859) and next prime (874965863).

It is not a de Polignac number, because 874965861 - 2¹ = 874965859 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 874965798 and 874965807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (874965863) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 208351 + ... + 212508.

It is an arithmetic number, because the mean of its divisors is an integer number (50503200).

Almost surely, 2^874965861 is an apocalyptic number.

It is an amenable number.

874965861 is a deficient number, since it is larger than the sum of its proper divisors (741136539).

874965861 is a wasteful number, since it uses less digits than its factorization.

874965861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420886 (or 420880 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 54.

The square root of 874965861 is about 29579.8218554473. The cubic root of 874965861 is about 956.4531520706.

It can be divided in two parts, 874965 and 861, that added together give a triangular number (875826 = T₁₃₂₃).

The spelling of 874965861 in words is "eight hundred seventy-four million, nine hundred sixty-five thousand, eight hundred sixty-one".