2649616 has 10 divisors (see below), whose sum is σ = 5133662. Its totient is φ = 1324800.

The previous prime is 2649613. The next prime is 2649677. The reversal of 2649616 is 6169462.

It can be written as a sum of positive squares in only one way, i.e., 2547216 + 102400 = 1596^2 + 320^2 .

It is not an unprimeable number, because it can be changed into a prime (2649611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82785 + ... + 82816.

2^2649616 is an apocalyptic number.

It is an amenable number.

2649616 is a deficient number, since it is larger than the sum of its proper divisors (2484046).

2649616 is a wasteful number, since it uses less digits than its factorization.

2649616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165609 (or 165603 counting only the distinct ones).

The product of its digits is 15552, while the sum is 34.

The square root of 2649616 is about 1627.7641106745. The cubic root of 2649616 is about 138.3760658936.

The spelling of 2649616 in words is "two million, six hundred forty-nine thousand, six hundred sixteen".