6473857 has 4 divisors (see below), whose sum is σ = 6971860. Its totient is φ = 5975856.

The previous prime is 6473843. The next prime is 6473861. The reversal of 6473857 is 7583746.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7583746 = 2 ⋅3791873.

It can be written as a sum of positive squares in 2 ways, for example, as 2143296 + 4330561 = 1464^2 + 2081^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6473857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6473807) 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, 248982 + ... + 249007.

It is an arithmetic number, because the mean of its divisors is an integer number (1742965).

Almost surely, 2^6473857 is an apocalyptic number.

It is an amenable number.

6473857 is a deficient number, since it is larger than the sum of its proper divisors (498003).

6473857 is a wasteful number, since it uses less digits than its factorization.

6473857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498002.

The product of its digits is 141120, while the sum is 40.

The square root of 6473857 is about 2544.3775270191. The cubic root of 6473857 is about 186.3750189864.

The spelling of 6473857 in words is "six million, four hundred seventy-three thousand, eight hundred fifty-seven".