65853197 has 2 divisors, whose sum is σ = 65853198. Its totient is φ = 65853196.

The previous prime is 65853191. The next prime is 65853233. The reversal of 65853197 is 79135856.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50282281 + 15570916 = 7091^2 + 3946^2 .

It is a cyclic number.

It is not a de Polignac number, because 65853197 - 2⁴ = 65853181 is a prime.

It is a Chen prime.

It is equal to p_3887936 and since 65853197 and 3887936 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65853191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32926598 + 32926599.

It is an arithmetic number, because the mean of its divisors is an integer number (32926599).

Almost surely, 2^65853197 is an apocalyptic number.

It is an amenable number.

65853197 is a deficient number, since it is larger than the sum of its proper divisors (1).

65853197 is an equidigital number, since it uses as much as digits as its factorization.

65853197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 226800, while the sum is 44.

The square root of 65853197 is about 8114.9982747996. The cubic root of 65853197 is about 403.8241502602.

The spelling of 65853197 in words is "sixty-five million, eight hundred fifty-three thousand, one hundred ninety-seven".