65977137 has 12 divisors (see below), whose sum is σ = 95382144. Its totient is φ = 43947000.

The previous prime is 65977129. The next prime is 65977141. The reversal of 65977137 is 73177956.

It is not a de Polignac number, because 65977137 - 2³ = 65977129 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 65977092 and 65977101.

It is not an unprimeable number, because it can be changed into a prime (65977127) 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, 11512 + ... + 16262.

It is an arithmetic number, because the mean of its divisors is an integer number (7948512).

Almost surely, 2^65977137 is an apocalyptic number.

It is an amenable number.

65977137 is a deficient number, since it is larger than the sum of its proper divisors (29405007).

65977137 is a wasteful number, since it uses less digits than its factorization.

65977137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6300 (or 6297 counting only the distinct ones).

The product of its digits is 277830, while the sum is 45.

The square root of 65977137 is about 8122.6311623759. The cubic root of 65977137 is about 404.0773325968.

The spelling of 65977137 in words is "sixty-five million, nine hundred seventy-seven thousand, one hundred thirty-seven".