6457147 has 4 divisors (see below), whose sum is σ = 6480736. Its totient is φ = 6433560.

The previous prime is 6457123. The next prime is 6457163. The reversal of 6457147 is 7417546.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6457147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6457247) 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, 11379 + ... + 11932.

It is an arithmetic number, because the mean of its divisors is an integer number (1620184).

Almost surely, 2^6457147 is an apocalyptic number.

6457147 is a deficient number, since it is larger than the sum of its proper divisors (23589).

6457147 is a wasteful number, since it uses less digits than its factorization.

6457147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23588.

The product of its digits is 23520, while the sum is 34.

The square root of 6457147 is about 2541.0916945282. The cubic root of 6457147 is about 186.2145268238.

The spelling of 6457147 in words is "six million, four hundred fifty-seven thousand, one hundred forty-seven".