2871730 has 8 divisors (see below), whose sum is σ = 5169132. Its totient is φ = 1148688.

The previous prime is 2871721. The next prime is 2871731. The reversal of 2871730 is 371782.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2653641 + 218089 = 1629^2 + 467^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (2871731) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143577 + ... + 143596.

2^2871730 is an apocalyptic number.

2871730 is a deficient number, since it is larger than the sum of its proper divisors (2297402).

2871730 is a wasteful number, since it uses less digits than its factorization.

2871730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287180.

The product of its (nonzero) digits is 2352, while the sum is 28.

The square root of 2871730 is about 1694.6179510438. The cubic root of 2871730 is about 142.1394187146.

The spelling of 2871730 in words is "two million, eight hundred seventy-one thousand, seven hundred thirty".