65897895 has 24 divisors (see below), whose sum is σ = 122652144. Its totient is φ = 30124416.

The previous prime is 65897893. The next prime is 65897911. The reversal of 65897895 is 59879856.

It is not a de Polignac number, because 65897895 - 2¹ = 65897893 is a prime.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65897893) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44094 + ... + 45563.

It is an arithmetic number, because the mean of its divisors is an integer number (5110506).

Almost surely, 2^65897895 is an apocalyptic number.

65897895 is a deficient number, since it is larger than the sum of its proper divisors (56754249).

65897895 is a wasteful number, since it uses less digits than its factorization.

65897895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89679 (or 89672 counting only the distinct ones).

The product of its digits is 5443200, while the sum is 57.

The square root of 65897895 is about 8117.7518439529. The cubic root of 65897895 is about 403.9154951018.

The spelling of 65897895 in words is "sixty-five million, eight hundred ninety-seven thousand, eight hundred ninety-five".