65361897 has 12 divisors (see below), whose sum is σ = 97908720. Its totient is φ = 43574436.

The previous prime is 65361887. The next prime is 65361899. The reversal of 65361897 is 79816356.

It is a happy number.

It is not a de Polignac number, because 65361897 - 2¹⁸ = 65099753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65361899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 134247 + ... + 134732.

It is an arithmetic number, because the mean of its divisors is an integer number (8159060).

Almost surely, 2^65361897 is an apocalyptic number.

It is an amenable number.

65361897 is a deficient number, since it is larger than the sum of its proper divisors (32546823).

65361897 is an equidigital number, since it uses as much as digits as its factorization.

65361897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268994 (or 268982 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 65361897 is about 8084.6704942131. The cubic root of 65361897 is about 402.8173945456.

The spelling of 65361897 in words is "sixty-five million, three hundred sixty-one thousand, eight hundred ninety-seven".