2827861647 has 8 divisors (see below), whose sum is σ = 4060519344. Its totient is φ = 1740222528.

The previous prime is 2827861609. The next prime is 2827861667. The reversal of 2827861647 is 7461687282.

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

It is not a de Polignac number, because 2827861647 - 2⁸ = 2827861391 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2827861647.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2827861667) 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, 36254598 + ... + 36254675.

It is an arithmetic number, because the mean of its divisors is an integer number (507564918).

Almost surely, 2^2827861647 is an apocalyptic number.

2827861647 is a deficient number, since it is larger than the sum of its proper divisors (1232657697).

2827861647 is a wasteful number, since it uses less digits than its factorization.

2827861647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72509289.

The product of its digits is 1806336, while the sum is 51.

The square root of 2827861647 is about 53177.6423603003. The cubic root of 2827861647 is about 1414.1193098006.

The spelling of 2827861647 in words is "two billion, eight hundred twenty-seven million, eight hundred sixty-one thousand, six hundred forty-seven".