2623545 has 24 divisors (see below), whose sum is σ = 4587336. Its totient is φ = 1387008.

The previous prime is 2623531. The next prime is 2623567. The reversal of 2623545 is 5453262.

It can be written as a sum of positive squares in 4 ways, for example, as 480249 + 2143296 = 693^2 + 1464^2 .

It is not a de Polignac number, because 2623545 - 2⁴ = 2623529 is a prime.

It is a d-powerful number, because it can be written as 2⁷ + 6 + 2²⁰ + 3¹² + 5⁸ + 4⁹ + 5⁸ .

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 7617 + ... + 7953.

It is an arithmetic number, because the mean of its divisors is an integer number (191139).

2^2623545 is an apocalyptic number.

It is an amenable number.

2623545 is a deficient number, since it is larger than the sum of its proper divisors (1963791).

2623545 is a wasteful number, since it uses less digits than its factorization.

2623545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521 (or 518 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 2623545 is about 1619.7360896146. The cubic root of 2623545 is about 137.9207169042.

The spelling of 2623545 in words is "two million, six hundred twenty-three thousand, five hundred forty-five".