2784331057 has 4 divisors (see below), whose sum is σ = 2786063140. Its totient is φ = 2782598976.

The previous prime is 2784331049. The next prime is 2784331087. The reversal of 2784331057 is 7501334872.

It is a happy number.

2784331057 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1724242576 + 1060088481 = 41524^2 + 32559^2 .

It is a cyclic number.

It is not a de Polignac number, because 2784331057 - 2³ = 2784331049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2784331087) 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, 863628 + ... + 866845.

It is an arithmetic number, because the mean of its divisors is an integer number (696515785).

Almost surely, 2^2784331057 is an apocalyptic number.

It is an amenable number.

2784331057 is a deficient number, since it is larger than the sum of its proper divisors (1732083).

2784331057 is a wasteful number, since it uses less digits than its factorization.

2784331057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1732082.

The product of its (nonzero) digits is 141120, while the sum is 40.

The square root of 2784331057 is about 52766.7609106339. The cubic root of 2784331057 is about 1406.8256906073.

The spelling of 2784331057 in words is "two billion, seven hundred eighty-four million, three hundred thirty-one thousand, fifty-seven".