6287945 has 4 divisors (see below), whose sum is σ = 7545540. Its totient is φ = 5030352.

The previous prime is 6287929. The next prime is 6287959. The reversal of 6287945 is 5497826.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3794704 + 2493241 = 1948^2 + 1579^2 .

It is a cyclic number.

It is not a de Polignac number, because 6287945 - 2⁴ = 6287929 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 628790 + ... + 628799.

It is an arithmetic number, because the mean of its divisors is an integer number (1886385).

Almost surely, 2^6287945 is an apocalyptic number.

It is an amenable number.

6287945 is a deficient number, since it is larger than the sum of its proper divisors (1257595).

6287945 is a wasteful number, since it uses less digits than its factorization.

6287945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1257594.

The product of its digits is 120960, while the sum is 41.

The square root of 6287945 is about 2507.5775162495. The cubic root of 6287945 is about 184.5735979366.

The spelling of 6287945 in words is "six million, two hundred eighty-seven thousand, nine hundred forty-five".