65822990 has 16 divisors (see below), whose sum is σ = 118981440. Its totient is φ = 26218080.

The previous prime is 65822971. The next prime is 65823001. The reversal of 65822990 is 9922856.

65822990 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 11381 + ... + 16160.

It is an arithmetic number, because the mean of its divisors is an integer number (7436340).

Almost surely, 2^65822990 is an apocalyptic number.

65822990 is a deficient number, since it is larger than the sum of its proper divisors (53158450).

65822990 is a wasteful number, since it uses less digits than its factorization.

65822990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27787.

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 65822990 is about 8113.1368779283. The cubic root of 65822990 is about 403.7623958212.

The spelling of 65822990 in words is "sixty-five million, eight hundred twenty-two thousand, nine hundred ninety".