6128247 has 4 divisors (see below), whose sum is σ = 8171000. Its totient is φ = 4085496.

The previous prime is 6128237. The next prime is 6128257. The reversal of 6128247 is 7428216.

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

It is an interprime number because it is at equal distance from previous prime (6128237) and next prime (6128257).

It is not a de Polignac number, because 6128247 - 2⁶ = 6128183 is a prime.

It is a super-2 number, since 2×6128247² = 75110822586018, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

6128247 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6128207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1021372 + ... + 1021377.

It is an arithmetic number, because the mean of its divisors is an integer number (2042750).

Almost surely, 2^6128247 is an apocalyptic number.

6128247 is a deficient number, since it is larger than the sum of its proper divisors (2042753).

6128247 is a wasteful number, since it uses less digits than its factorization.

6128247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2042752.

The product of its digits is 5376, while the sum is 30.

The square root of 6128247 is about 2475.5296402992. The cubic root of 6128247 is about 182.9976111247.

The spelling of 6128247 in words is "six million, one hundred twenty-eight thousand, two hundred forty-seven".