65827986 has 16 divisors (see below), whose sum is σ = 150464064. Its totient is φ = 18807984.

The previous prime is 65827943. The next prime is 65827987. The reversal of 65827986 is 68972856.

It is not an unprimeable number, because it can be changed into a prime (65827987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 783625 + ... + 783708.

It is an arithmetic number, because the mean of its divisors is an integer number (9404004).

Almost surely, 2^65827986 is an apocalyptic number.

65827986 is an abundant number, since it is smaller than the sum of its proper divisors (84636078).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65827986 is a wasteful number, since it uses less digits than its factorization.

65827986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1567345.

The product of its digits is 1451520, while the sum is 51.

The square root of 65827986 is about 8113.4447677913. Note that the first 3 decimals coincide. The cubic root of 65827986 is about 403.7726108230.

The spelling of 65827986 in words is "sixty-five million, eight hundred twenty-seven thousand, nine hundred eighty-six".