2745987 has 8 divisors (see below), whose sum is σ = 3673104. Its totient is φ = 1824768.

The previous prime is 2745979. The next prime is 2745989. The reversal of 2745987 is 7895472.

2745987 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2745987 - 2³ = 2745979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2745989) 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 7 ways as a sum of consecutive naturals, for example, 238 + ... + 2355.

It is an arithmetic number, because the mean of its divisors is an integer number (459138).

2^2745987 is an apocalyptic number.

2745987 is a deficient number, since it is larger than the sum of its proper divisors (927117).

2745987 is a wasteful number, since it uses less digits than its factorization.

2745987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2949.

The product of its digits is 141120, while the sum is 42.

The square root of 2745987 is about 1657.1019884123. The cubic root of 2745987 is about 140.0337843636.

The spelling of 2745987 in words is "two million, seven hundred forty-five thousand, nine hundred eighty-seven".