65213973 has 24 divisors (see below), whose sum is σ = 103836096. Its totient is φ = 39110400.

The previous prime is 65213971. The next prime is 65213977. The reversal of 65213973 is 37931256.

65213973 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 65213973 - 2¹ = 65213971 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65213971) 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 23 ways as a sum of consecutive naturals, for example, 6208 + ... + 12998.

It is an arithmetic number, because the mean of its divisors is an integer number (4326504).

Almost surely, 2^65213973 is an apocalyptic number.

It is an amenable number.

65213973 is a deficient number, since it is larger than the sum of its proper divisors (38622123).

65213973 is a wasteful number, since it uses less digits than its factorization.

65213973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6905 (or 6902 counting only the distinct ones).

The product of its digits is 34020, while the sum is 36.

The square root of 65213973 is about 8075.5168874816. The cubic root of 65213973 is about 402.5132858287.

The spelling of 65213973 in words is "sixty-five million, two hundred thirteen thousand, nine hundred seventy-three".