2971309086 has 48 divisors (see below), whose sum is σ = 6673970160. Its totient is φ = 954253440.

The previous prime is 2971309069. The next prime is 2971309097. The reversal of 2971309086 is 6809031792.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 250506 + ... + 262098.

It is an arithmetic number, because the mean of its divisors is an integer number (139041045).

Almost surely, 2^2971309086 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2971309086, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3336985080).

2971309086 is an abundant number, since it is smaller than the sum of its proper divisors (3702661074).

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

2971309086 is a wasteful number, since it uses less digits than its factorization.

2971309086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12121 (or 12118 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The square root of 2971309086 is about 54509.7155193457. The cubic root of 2971309086 is about 1437.6371173654.

The spelling of 2971309086 in words is "two billion, nine hundred seventy-one million, three hundred nine thousand, eighty-six".