2880649 has 2 divisors, whose sum is σ = 2880650. Its totient is φ = 2880648.

The previous prime is 2880643. The next prime is 2880659. The reversal of 2880649 is 9460882.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2866249 + 14400 = 1693^2 + 120^2 .

It is a cyclic number.

It is not a de Polignac number, because 2880649 - 2³ = 2880641 is a prime.

It is a super-2 number, since 2×2880649² = 16596277322402, which contains 22 as substring.

It is a Chen prime.

2880649 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (2880641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1440324 + 1440325.

It is an arithmetic number, because the mean of its divisors is an integer number (1440325).

2^2880649 is an apocalyptic number.

It is an amenable number.

2880649 is a deficient number, since it is larger than the sum of its proper divisors (1).

2880649 is an equidigital number, since it uses as much as digits as its factorization.

2880649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 2880649 is about 1697.2474775353. The cubic root of 2880649 is about 142.2864185239.

The spelling of 2880649 in words is "two million, eight hundred eighty thousand, six hundred forty-nine".