71009286 has 8 divisors (see below), whose sum is σ = 142018584. Its totient is φ = 23669760.

The previous prime is 71009261. The next prime is 71009287. The reversal of 71009286 is 68290017.

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

71009286 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71009287) 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, 5917435 + ... + 5917446.

It is an arithmetic number, because the mean of its divisors is an integer number (17752323).

Almost surely, 2^71009286 is an apocalyptic number.

71009286 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

71009286 is a wasteful number, since it uses less digits than its factorization.

71009286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11834886.

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 71009286 is about 8426.7007778845. The cubic root of 71009286 is about 414.0998265655.

The spelling of 71009286 in words is "seventy-one million, nine thousand, two hundred eighty-six".