65906975 has 6 divisors (see below), whose sum is σ = 81724680. Its totient is φ = 52725560.

The previous prime is 65906969. The next prime is 65906999. The reversal of 65906975 is 57960956.

It is not a de Polignac number, because 65906975 - 2²⁰ = 64858399 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1318115 + ... + 1318164.

It is an arithmetic number, because the mean of its divisors is an integer number (13620780).

Almost surely, 2^65906975 is an apocalyptic number.

65906975 is a deficient number, since it is larger than the sum of its proper divisors (15817705).

65906975 is a wasteful number, since it uses less digits than its factorization.

65906975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2636289 (or 2636284 counting only the distinct ones).

The product of its (nonzero) digits is 510300, while the sum is 47.

The square root of 65906975 is about 8118.3110928321. The cubic root of 65906975 is about 403.9340459435.

The spelling of 65906975 in words is "sixty-five million, nine hundred six thousand, nine hundred seventy-five".