6247889 has 4 divisors (see below), whose sum is σ = 6318180. Its totient is φ = 6177600.

The previous prime is 6247861. The next prime is 6247897. The reversal of 6247889 is 9887426.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9887426 = 2 ⋅4943713.

It can be written as a sum of positive squares in 2 ways, for example, as 3330625 + 2917264 = 1825^2 + 1708^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6247889 is a prime.

It is a super-2 number, since 2×6247889² = 78072233912642, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6247819) 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, 35012 + ... + 35189.

It is an arithmetic number, because the mean of its divisors is an integer number (1579545).

Almost surely, 2^6247889 is an apocalyptic number.

It is an amenable number.

6247889 is a deficient number, since it is larger than the sum of its proper divisors (70291).

6247889 is an equidigital number, since it uses as much as digits as its factorization.

6247889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70290.

The product of its digits is 193536, while the sum is 44.

The square root of 6247889 is about 2499.5777643434. The cubic root of 6247889 is about 184.1808339554.

The spelling of 6247889 in words is "six million, two hundred forty-seven thousand, eight hundred eighty-nine".