2649767 has 4 divisors (see below), whose sum is σ = 2655696. Its totient is φ = 2643840.

The previous prime is 2649733. The next prime is 2649769. The reversal of 2649767 is 7679462.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2649767 is a prime.

It is a d-powerful number, because it can be written as 2²¹ + 6 + 4⁶ + 9⁶ + 7² + 6³ + 7⁵ .

It is a Duffinian 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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2234 + ... + 3207.

It is an arithmetic number, because the mean of its divisors is an integer number (663924).

2^2649767 is an apocalyptic number.

2649767 is a deficient number, since it is larger than the sum of its proper divisors (5929).

2649767 is an equidigital number, since it uses as much as digits as its factorization.

2649767 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5928.

The product of its digits is 127008, while the sum is 41.

The square root of 2649767 is about 1627.8104926557. The cubic root of 2649767 is about 138.3786944996.

The spelling of 2649767 in words is "two million, six hundred forty-nine thousand, seven hundred sixty-seven".