2649765 has 8 divisors (see below), whose sum is σ = 4239648. Its totient is φ = 1413200.

The previous prime is 2649733. The next prime is 2649769. The reversal of 2649765 is 5679462.

2649765 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 2649765 - 2⁵ = 2649733 is a prime.

It is a d-powerful number, because it can be written as 2¹³ + 6³ + 4⁵ + 9⁵ + 7⁷ + 6⁸ + 5⁷ .

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2649769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88311 + ... + 88340.

It is an arithmetic number, because the mean of its divisors is an integer number (529956).

2^2649765 is an apocalyptic number.

It is an amenable number.

2649765 is a deficient number, since it is larger than the sum of its proper divisors (1589883).

2649765 is a wasteful number, since it uses less digits than its factorization.

2649765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176659.

The product of its digits is 90720, while the sum is 39.

The square root of 2649765 is about 1627.8098783335. The cubic root of 2649765 is about 138.3786596842.

It can be divided in two parts, 26497 and 65, that added together give a palindrome (26562).

The spelling of 2649765 in words is "two million, six hundred forty-nine thousand, seven hundred sixty-five".