2812971439 has 2 divisors, whose sum is σ = 2812971440. Its totient is φ = 2812971438.

The previous prime is 2812971433. The next prime is 2812971443. The reversal of 2812971439 is 9341792182.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2812971439 - 2³ = 2812971431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2812971431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1406485719 + 1406485720.

It is an arithmetic number, because the mean of its divisors is an integer number (1406485720).

Almost surely, 2^2812971439 is an apocalyptic number.

2812971439 is a deficient number, since it is larger than the sum of its proper divisors (1).

2812971439 is an equidigital number, since it uses as much as digits as its factorization.

2812971439 is an evil number, because the sum of its binary digits is even.

The product of its digits is 217728, while the sum is 46.

The square root of 2812971439 is about 53037.4531722631. The cubic root of 2812971439 is about 1411.6329084413.

The spelling of 2812971439 in words is "two billion, eight hundred twelve million, nine hundred seventy-one thousand, four hundred thirty-nine".