871881494 has 16 divisors (see below), whose sum is σ = 1427189760. Its totient is φ = 396177960.

The previous prime is 871881487. The next prime is 871881503. The reversal of 871881494 is 494188178.

It is a happy number.

It is a super-3 number, since 3×871881494³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97787 + ... + 106329.

It is an arithmetic number, because the mean of its divisors is an integer number (89199360).

Almost surely, 2^871881494 is an apocalyptic number.

871881494 is a deficient number, since it is larger than the sum of its proper divisors (555308266).

871881494 is a wasteful number, since it uses less digits than its factorization.

871881494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13195.

The product of its digits is 516096, while the sum is 50.

The square root of 871881494 is about 29527.6394925162. The cubic root of 871881494 is about 955.3279554911.

The spelling of 871881494 in words is "eight hundred seventy-one million, eight hundred eighty-one thousand, four hundred ninety-four".