6457975 has 6 divisors (see below), whose sum is σ = 8007920. Its totient is φ = 5166360.

The previous prime is 6457949. The next prime is 6457987. The reversal of 6457975 is 5797546.

It is not a de Polignac number, because 6457975 - 2¹⁵ = 6425207 is a prime.

It is a super-2 number, since 2×6457975² = 83410882201250, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 129135 + ... + 129184.

Almost surely, 2^6457975 is an apocalyptic number.

6457975 is a deficient number, since it is larger than the sum of its proper divisors (1549945).

6457975 is a wasteful number, since it uses less digits than its factorization.

6457975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258329 (or 258324 counting only the distinct ones).

The product of its digits is 264600, while the sum is 43.

The square root of 6457975 is about 2541.2546114075. The cubic root of 6457975 is about 186.2224859136. Note that the first 3 decimals are identical.

The spelling of 6457975 in words is "six million, four hundred fifty-seven thousand, nine hundred seventy-five".