82945764 has 36 divisors (see below), whose sum is σ = 228730320. Its totient is φ = 25134960.

The previous prime is 82945763. The next prime is 82945777. The reversal of 82945764 is 46754928.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (82945763) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 104334 + ... + 105125.

It is an arithmetic number, because the mean of its divisors is an integer number (6353620).

Almost surely, 2^82945764 is an apocalyptic number.

It is an amenable number.

82945764 is an abundant number, since it is smaller than the sum of its proper divisors (145784556).

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

82945764 is a wasteful number, since it uses less digits than its factorization.

82945764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209480 (or 209475 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 82945764 is about 9107.4565055234. The cubic root of 82945764 is about 436.1120338866.

The spelling of 82945764 in words is "eighty-two million, nine hundred forty-five thousand, seven hundred sixty-four".