2646057 has 4 divisors (see below), whose sum is σ = 3528080. Its totient is φ = 1764036.

The previous prime is 2646041. The next prime is 2646071. The reversal of 2646057 is 7506462.

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 not a de Polignac number, because 2646057 - 2⁴ = 2646041 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2645057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 441007 + ... + 441012.

It is an arithmetic number, because the mean of its divisors is an integer number (882020).

2^2646057 is an apocalyptic number.

It is an amenable number.

2646057 is a deficient number, since it is larger than the sum of its proper divisors (882023).

2646057 is an equidigital number, since it uses as much as digits as its factorization.

2646057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 882022.

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 2646057 is about 1626.6705259517. The cubic root of 2646057 is about 138.3140819325.

The spelling of 2646057 in words is "two million, six hundred forty-six thousand, fifty-seven".