71887834 has 16 divisors (see below), whose sum is σ = 112765248. Its totient is φ = 34306272.

The previous prime is 71887831. The next prime is 71887859. The reversal of 71887834 is 43878817.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is not an unprimeable number, because it can be changed into a prime (71887831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23734 + ... + 26590.

It is an arithmetic number, because the mean of its divisors is an integer number (7047828).

Almost surely, 2^71887834 is an apocalyptic number.

71887834 is a deficient number, since it is larger than the sum of its proper divisors (40877414).

71887834 is a wasteful number, since it uses less digits than its factorization.

71887834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3429.

The product of its digits is 301056, while the sum is 46.

The square root of 71887834 is about 8478.6693531473. The cubic root of 71887834 is about 415.8006202175.

The spelling of 71887834 in words is "seventy-one million, eight hundred eighty-seven thousand, eight hundred thirty-four".