65678895 has 12 divisors (see below), whose sum is σ = 113843496. Its totient is φ = 35028720.

The previous prime is 65678891. The next prime is 65678917. The reversal of 65678895 is 59887656.

It is not a de Polignac number, because 65678895 - 2² = 65678891 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65678891) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 729721 + ... + 729810.

It is an arithmetic number, because the mean of its divisors is an integer number (9486958).

Almost surely, 2^65678895 is an apocalyptic number.

65678895 is a deficient number, since it is larger than the sum of its proper divisors (48164601).

65678895 is a wasteful number, since it uses less digits than its factorization.

65678895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1459542 (or 1459539 counting only the distinct ones).

The product of its digits is 3628800, while the sum is 54.

The square root of 65678895 is about 8104.2516619365. The cubic root of 65678895 is about 403.4675512755.

The spelling of 65678895 in words is "sixty-five million, six hundred seventy-eight thousand, eight hundred ninety-five".