2871630 has 24 divisors (see below), whose sum is σ = 7466472. Its totient is φ = 765744.

The previous prime is 2871629. The next prime is 2871643. The reversal of 2871630 is 361782.

2871630 is a `hidden beast` number, since 28 + 7 + 1 + 630 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 2871594 and 2871603.

It is a congruent number.

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, 15864 + ... + 16043.

It is an arithmetic number, because the mean of its divisors is an integer number (311103).

2^2871630 is an apocalyptic number.

2871630 is an abundant number, since it is smaller than the sum of its proper divisors (4594842).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2871630 is a wasteful number, since it uses less digits than its factorization.

2871630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31920 (or 31917 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 2871630 is about 1694.5884456115. The cubic root of 2871630 is about 142.1377688256.

The spelling of 2871630 in words is "two million, eight hundred seventy-one thousand, six hundred thirty".