871428730 has 24 divisors (see below), whose sum is σ = 1655480052. Its totient is φ = 330224256.

The previous prime is 871428659. The next prime is 871428751. The reversal of 871428730 is 37824178.

It can be written as a sum of positive squares in 2 ways, for example, as 835152201 + 36276529 = 28899^2 + 6023^2 .

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, 117087 + ... + 124306.

Almost surely, 2^871428730 is an apocalyptic number.

871428730 is a deficient number, since it is larger than the sum of its proper divisors (784051322).

871428730 is a wasteful number, since it uses less digits than its factorization.

871428730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241438 (or 241419 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 40.

The square root of 871428730 is about 29519.9717140786. The cubic root of 871428730 is about 955.1625610719.

The spelling of 871428730 in words is "eight hundred seventy-one million, four hundred twenty-eight thousand, seven hundred thirty".