65982377 has 4 divisors (see below), whose sum is σ = 68851200. Its totient is φ = 63113556.

The previous prime is 65982361. The next prime is 65982401. The reversal of 65982377 is 77328956.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 65982377 - 2⁴ = 65982361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65982577) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1434377 + ... + 1434422.

It is an arithmetic number, because the mean of its divisors is an integer number (17212800).

Almost surely, 2^65982377 is an apocalyptic number.

It is an amenable number.

65982377 is a deficient number, since it is larger than the sum of its proper divisors (2868823).

65982377 is a wasteful number, since it uses less digits than its factorization.

65982377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2868822.

The product of its digits is 635040, while the sum is 47.

The square root of 65982377 is about 8122.9537115510. The cubic root of 65982377 is about 404.0880297831.

The spelling of 65982377 in words is "sixty-five million, nine hundred eighty-two thousand, three hundred seventy-seven".