2720487 has 16 divisors (see below), whose sum is σ = 4522752. Its totient is φ = 1413120.

The previous prime is 2720447. The next prime is 2720503. The reversal of 2720487 is 7840272.

2720487 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2720487 - 2⁷ = 2720359 is a prime.

2720487 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2720447) 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 15 ways as a sum of consecutive naturals, for example, 5658 + ... + 6119.

It is an arithmetic number, because the mean of its divisors is an integer number (282672).

2^2720487 is an apocalyptic number.

2720487 is a deficient number, since it is larger than the sum of its proper divisors (1802265).

2720487 is a wasteful number, since it uses less digits than its factorization.

2720487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11798.

The product of its (nonzero) digits is 6272, while the sum is 30.

The square root of 2720487 is about 1649.3898872007. The cubic root of 2720487 is about 139.5989714021.

The spelling of 2720487 in words is "two million, seven hundred twenty thousand, four hundred eighty-seven".