2643915 has 8 divisors (see below), whose sum is σ = 4230288. Its totient is φ = 1410080.

The previous prime is 2643913. The next prime is 2643917. The reversal of 2643915 is 5193462.

It is an interprime number because it is at equal distance from previous prime (2643913) and next prime (2643917).

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

It is not a de Polignac number, because 2643915 - 2¹ = 2643913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2643913) 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, 88116 + ... + 88145.

It is an arithmetic number, because the mean of its divisors is an integer number (528786).

2^2643915 is an apocalyptic number.

2643915 is a deficient number, since it is larger than the sum of its proper divisors (1586373).

2643915 is a wasteful number, since it uses less digits than its factorization.

2643915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176269.

The product of its digits is 6480, while the sum is 30.

The square root of 2643915 is about 1626.0119925757. The cubic root of 2643915 is about 138.2767498136.

The spelling of 2643915 in words is "two million, six hundred forty-three thousand, nine hundred fifteen".