65975197 has 4 divisors (see below), whose sum is σ = 66147840. Its totient is φ = 65802556.

The previous prime is 65975171. The next prime is 65975207. The reversal of 65975197 is 79157956.

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 65975197 - 2⁷ = 65975069 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 65975197.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65975167) 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, 85747 + ... + 86512.

It is an arithmetic number, because the mean of its divisors is an integer number (16536960).

Almost surely, 2^65975197 is an apocalyptic number.

It is an amenable number.

65975197 is a deficient number, since it is larger than the sum of its proper divisors (172643).

65975197 is a wasteful number, since it uses less digits than its factorization.

65975197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172642.

The product of its digits is 595350, while the sum is 49.

The square root of 65975197 is about 8122.5117420660. The cubic root of 65975197 is about 404.0733720445.

The spelling of 65975197 in words is "sixty-five million, nine hundred seventy-five thousand, one hundred ninety-seven".