2645437 has 4 divisors (see below), whose sum is σ = 2760480. Its totient is φ = 2530396.

The previous prime is 2645431. The next prime is 2645453. The reversal of 2645437 is 7345462.

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 2645437 - 2³ = 2645429 is a prime.

It is a d-powerful number, because it can be written as 2¹¹ + 6 + 4² + 5³ + 4¹⁰ + 3¹³ + 7³ .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2645399 and 2645408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2645431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57487 + ... + 57532.

It is an arithmetic number, because the mean of its divisors is an integer number (690120).

2^2645437 is an apocalyptic number.

It is an amenable number.

2645437 is a deficient number, since it is larger than the sum of its proper divisors (115043).

2645437 is a wasteful number, since it uses less digits than its factorization.

2645437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115042.

The product of its digits is 20160, while the sum is 31.

The square root of 2645437 is about 1626.4799414687. The cubic root of 2645437 is about 138.3032782563.

The spelling of 2645437 in words is "two million, six hundred forty-five thousand, four hundred thirty-seven".