2978897286 has 16 divisors (see below), whose sum is σ = 5958366768. Its totient is φ = 992870400.

The previous prime is 2978897263. The next prime is 2978897309. The reversal of 2978897286 is 6827988792.

It is a happy number.

2978897286 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2978897263) and next prime (2978897309).

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, 76006 + ... + 108326.

It is an arithmetic number, because the mean of its divisors is an integer number (372397923).

Almost surely, 2^2978897286 is an apocalyptic number.

2978897286 is an abundant number, since it is smaller than the sum of its proper divisors (2979469482).

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

2978897286 is a wasteful number, since it uses less digits than its factorization.

2978897286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47687.

The product of its digits is 48771072, while the sum is 66.

The square root of 2978897286 is about 54579.2752425314. The cubic root of 2978897286 is about 1438.8599010151.

The spelling of 2978897286 in words is "two billion, nine hundred seventy-eight million, eight hundred ninety-seven thousand, two hundred eighty-six".