65676197 has 4 divisors (see below), whose sum is σ = 67794816. Its totient is φ = 63557580.

The previous prime is 65676173. The next prime is 65676209. The reversal of 65676197 is 79167656.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 65676197 - 2⁶ = 65676133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65676497) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1059263 + ... + 1059324.

It is an arithmetic number, because the mean of its divisors is an integer number (16948704).

Almost surely, 2^65676197 is an apocalyptic number.

It is an amenable number.

65676197 is a deficient number, since it is larger than the sum of its proper divisors (2118619).

65676197 is a wasteful number, since it uses less digits than its factorization.

65676197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2118618.

The product of its digits is 476280, while the sum is 47.

The square root of 65676197 is about 8104.0852043892. The cubic root of 65676197 is about 403.4620265665.

The spelling of 65676197 in words is "sixty-five million, six hundred seventy-six thousand, one hundred ninety-seven".