2643465 has 32 divisors (see below), whose sum is σ = 4749696. Its totient is φ = 1244160.

The previous prime is 2643461. The next prime is 2643479. The reversal of 2643465 is 5643462.

It is not a de Polignac number, because 2643465 - 2² = 2643461 is a prime.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (2643461) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5889 + ... + 6321.

It is an arithmetic number, because the mean of its divisors is an integer number (148428).

2^2643465 is an apocalyptic number.

It is an amenable number.

2643465 is a deficient number, since it is larger than the sum of its proper divisors (2106231).

2643465 is a wasteful number, since it uses less digits than its factorization.

2643465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489.

The product of its digits is 17280, while the sum is 30.

The square root of 2643465 is about 1625.8736113241. The cubic root of 2643465 is about 138.2689043688.

The spelling of 2643465 in words is "two million, six hundred forty-three thousand, four hundred sixty-five".