6457845 has 16 divisors (see below), whose sum is σ = 10509120. Its totient is φ = 3385344.

The previous prime is 6457831. The next prime is 6457859. The reversal of 6457845 is 5487546.

It is an interprime number because it is at equal distance from previous prime (6457831) and next prime (6457859).

It is not a de Polignac number, because 6457845 - 2⁸ = 6457589 is a prime.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2764 + ... + 4533.

It is an arithmetic number, because the mean of its divisors is an integer number (656820).

Almost surely, 2^6457845 is an apocalyptic number.

It is an amenable number.

6457845 is a deficient number, since it is larger than the sum of its proper divisors (4051275).

6457845 is a wasteful number, since it uses less digits than its factorization.

6457845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7364.

The product of its digits is 134400, while the sum is 39.

The square root of 6457845 is about 2541.2290333616. The cubic root of 6457845 is about 186.2212363430.

Subtracting from 6457845 its reverse (5487546), we obtain a cube (970299 = 99³).

The spelling of 6457845 in words is "six million, four hundred fifty-seven thousand, eight hundred forty-five".