2782298121 has 4 divisors (see below), whose sum is σ = 3709730832. Its totient is φ = 1854865412.

The previous prime is 2782298111. The next prime is 2782298147. The reversal of 2782298121 is 1218922872.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2782298121 - 2¹¹ = 2782296073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2782298111) 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, 463716351 + ... + 463716356.

It is an arithmetic number, because the mean of its divisors is an integer number (927432708).

Almost surely, 2^2782298121 is an apocalyptic number.

It is an amenable number.

2782298121 is a deficient number, since it is larger than the sum of its proper divisors (927432711).

2782298121 is an equidigital number, since it uses as much as digits as its factorization.

2782298121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 927432710.

The product of its digits is 64512, while the sum is 42.

The square root of 2782298121 is about 52747.4939783873. The cubic root of 2782298121 is about 1406.4832166134.

The spelling of 2782298121 in words is "two billion, seven hundred eighty-two million, two hundred ninety-eight thousand, one hundred twenty-one".