65827905 has 32 divisors (see below), whose sum is σ = 123742080. Its totient is φ = 29460480.

The previous prime is 65827901. The next prime is 65827933. The reversal of 65827905 is 50972856.

65827905 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 65827905 - 2² = 65827901 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65827901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13200 + ... + 17489.

It is an arithmetic number, because the mean of its divisors is an integer number (3866940).

Almost surely, 2^65827905 is an apocalyptic number.

65827905 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

65827905 is a deficient number, since it is larger than the sum of its proper divisors (57914175).

65827905 is a wasteful number, since it uses less digits than its factorization.

65827905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30721.

The product of its (nonzero) digits is 151200, while the sum is 42.

The square root of 65827905 is about 8113.4397760752. The cubic root of 65827905 is about 403.7724452116.

The spelling of 65827905 in words is "sixty-five million, eight hundred twenty-seven thousand, nine hundred five".