2645633 has 6 divisors (see below), whose sum is σ = 2734722. Its totient is φ = 2559360.

The previous prime is 2645603. The next prime is 2645639. The reversal of 2645633 is 3365462.

It can be written as a sum of positive squares in only one way, i.e., 2598544 + 47089 = 1612^2 + 217^2 .

It is not a de Polignac number, because 2645633 - 2⁶ = 2645569 is a prime.

It is a d-powerful number, because it can be written as 2⁷ + 6⁴ + 4¹⁰ + 5 + 6⁴ + 3² + 3¹³ .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2645596 and 2645605.

It is not an unprimeable number, because it can be changed into a prime (2645639) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 416 + ... + 2337.

It is an arithmetic number, because the mean of its divisors is an integer number (455787).

2^2645633 is an apocalyptic number.

It is an amenable number.

2645633 is a deficient number, since it is larger than the sum of its proper divisors (89089).

2645633 is an equidigital number, since it uses as much as digits as its factorization.

2645633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2815 (or 2784 counting only the distinct ones).

The product of its digits is 12960, while the sum is 29.

The square root of 2645633 is about 1626.5401931708. The cubic root of 2645633 is about 138.3066937944.

The spelling of 2645633 in words is "two million, six hundred forty-five thousand, six hundred thirty-three".