2769649 has 4 divisors (see below), whose sum is σ = 2915440. Its totient is φ = 2623860.

The previous prime is 2769647. The next prime is 2769677. The reversal of 2769649 is 9469672.

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 2769649 - 2¹ = 2769647 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2769647) 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, 72867 + ... + 72904.

It is an arithmetic number, because the mean of its divisors is an integer number (728860).

2^2769649 is an apocalyptic number.

It is an amenable number.

2769649 is a deficient number, since it is larger than the sum of its proper divisors (145791).

2769649 is a wasteful number, since it uses less digits than its factorization.

2769649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145790.

The product of its digits is 163296, while the sum is 43.

The square root of 2769649 is about 1664.2262466384. The cubic root of 2769649 is about 140.4348553760.

The spelling of 2769649 in words is "two million, seven hundred sixty-nine thousand, six hundred forty-nine".