65987361 has 24 divisors (see below), whose sum is σ = 109455840. Its totient is φ = 37886400.

The previous prime is 65987347. The next prime is 65987371. The reversal of 65987361 is 16378956.

It is a happy number.

It is not a de Polignac number, because 65987361 - 2¹⁰ = 65986337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65987371) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15660 + ... + 19421.

It is an arithmetic number, because the mean of its divisors is an integer number (4560660).

Almost surely, 2^65987361 is an apocalyptic number.

It is an amenable number.

65987361 is a deficient number, since it is larger than the sum of its proper divisors (43468479).

65987361 is a wasteful number, since it uses less digits than its factorization.

65987361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35117 (or 35114 counting only the distinct ones).

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

The square root of 65987361 is about 8123.2604907143. The cubic root of 65987361 is about 404.0982038332.

The spelling of 65987361 in words is "sixty-five million, nine hundred eighty-seven thousand, three hundred sixty-one".