65772827 has 4 divisors (see below), whose sum is σ = 66007176. Its totient is φ = 65538480.

The previous prime is 65772821. The next prime is 65772853. The reversal of 65772827 is 72827756.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 65772827 - 2²² = 61578523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65772821) 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 3 ways as a sum of consecutive naturals, for example, 116753 + ... + 117314.

It is an arithmetic number, because the mean of its divisors is an integer number (16501794).

Almost surely, 2^65772827 is an apocalyptic number.

65772827 is a deficient number, since it is larger than the sum of its proper divisors (234349).

65772827 is a wasteful number, since it uses less digits than its factorization.

65772827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234348.

The product of its digits is 329280, while the sum is 44.

The square root of 65772827 is about 8110.0448210845. The cubic root of 65772827 is about 403.6598020803.

The spelling of 65772827 in words is "sixty-five million, seven hundred seventy-two thousand, eight hundred twenty-seven".