82213923 has 8 divisors (see below), whose sum is σ = 119583936. Its totient is φ = 49826600.

The previous prime is 82213919. The next prime is 82213973. The reversal of 82213923 is 32931228.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 82213923 - 2² = 82213919 is a prime.

It is not an unprimeable number, because it can be changed into a prime (82213903) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1245633 + ... + 1245698.

It is an arithmetic number, because the mean of its divisors is an integer number (14947992).

Almost surely, 2^82213923 is an apocalyptic number.

82213923 is a deficient number, since it is larger than the sum of its proper divisors (37370013).

82213923 is a wasteful number, since it uses less digits than its factorization.

82213923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2491345.

The product of its digits is 5184, while the sum is 30.

The square root of 82213923 is about 9067.1893660605. The cubic root of 82213923 is about 434.8256190989.

The spelling of 82213923 in words is "eighty-two million, two hundred thirteen thousand, nine hundred twenty-three".