8213764 has 24 divisors (see below), whose sum is σ = 15579648. Its totient is φ = 3766560.

The previous prime is 8213761. The next prime is 8213789. The reversal of 8213764 is 4673128.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8213761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9519 + ... + 10345.

It is an arithmetic number, because the mean of its divisors is an integer number (649152).

Almost surely, 2^8213764 is an apocalyptic number.

It is an amenable number.

8213764 is a deficient number, since it is larger than the sum of its proper divisors (7365884).

8213764 is a wasteful number, since it uses less digits than its factorization.

8213764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1035 (or 1033 counting only the distinct ones).

The product of its digits is 8064, while the sum is 31.

The square root of 8213764 is about 2865.9665036424. The cubic root of 8213764 is about 201.7657317469.

The spelling of 8213764 in words is "eight million, two hundred thirteen thousand, seven hundred sixty-four".