82213577 has 8 divisors (see below), whose sum is σ = 83635200. Its totient is φ = 80804304.

The previous prime is 82213567. The next prime is 82213591. The reversal of 82213577 is 77531228.

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 82213577 - 2¹² = 82209481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82213507) 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, 10874 + ... + 16812.

It is an arithmetic number, because the mean of its divisors is an integer number (10454400).

Almost surely, 2^82213577 is an apocalyptic number.

It is an amenable number.

82213577 is a deficient number, since it is larger than the sum of its proper divisors (1421623).

82213577 is a wasteful number, since it uses less digits than its factorization.

82213577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6175.

The product of its digits is 23520, while the sum is 35.

The square root of 82213577 is about 9067.1702862580. The cubic root of 82213577 is about 434.8250091054.

The spelling of 82213577 in words is "eighty-two million, two hundred thirteen thousand, five hundred seventy-seven".