65477677 has 4 divisors (see below), whose sum is σ = 65911456. Its totient is φ = 65043900.

The previous prime is 65477653. The next prime is 65477681. The reversal of 65477677 is 77677456.

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 a de Polignac number, because none of the positive numbers 2^k-65477677 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 65477677.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65477077) 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, 216663 + ... + 216964.

It is an arithmetic number, because the mean of its divisors is an integer number (16477864).

Almost surely, 2^65477677 is an apocalyptic number.

It is an amenable number.

65477677 is a deficient number, since it is larger than the sum of its proper divisors (433779).

65477677 is a wasteful number, since it uses less digits than its factorization.

65477677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433778.

The product of its digits is 1728720, while the sum is 49.

The square root of 65477677 is about 8091.8277910494. The cubic root of 65477677 is about 403.0551002495.

The spelling of 65477677 in words is "sixty-five million, four hundred seventy-seven thousand, six hundred seventy-seven".