65982939 has 16 divisors (see below), whose sum is σ = 96150144. Its totient is φ = 39916800.

The previous prime is 65982937. The next prime is 65982979. The reversal of 65982939 is 93928956.

It is not a de Polignac number, because 65982939 - 2¹ = 65982937 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 65982891 and 65982900.

It is not an unprimeable number, because it can be changed into a prime (65982937) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20724 + ... + 23694.

It is an arithmetic number, because the mean of its divisors is an integer number (6009384).

Almost surely, 2^65982939 is an apocalyptic number.

65982939 is a deficient number, since it is larger than the sum of its proper divisors (30167205).

65982939 is a wasteful number, since it uses less digits than its factorization.

65982939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3658.

The product of its digits is 1049760, while the sum is 51.

The square root of 65982939 is about 8122.9883048051. The cubic root of 65982939 is about 404.0891770431.

The spelling of 65982939 in words is "sixty-five million, nine hundred eighty-two thousand, nine hundred thirty-nine".