82642211 has 8 divisors (see below), whose sum is σ = 84952800. Its totient is φ = 80359552.

The previous prime is 82642193. The next prime is 82642213. The reversal of 82642211 is 11224628.

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 82642211 - 2¹⁴ = 82625827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82642213) 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, 911 + ... + 12888.

It is an arithmetic number, because the mean of its divisors is an integer number (10619100).

Almost surely, 2^82642211 is an apocalyptic number.

82642211 is a deficient number, since it is larger than the sum of its proper divisors (2310589).

82642211 is a wasteful number, since it uses less digits than its factorization.

82642211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13965.

The product of its digits is 1536, while the sum is 26.

The square root of 82642211 is about 9090.7761494825. The cubic root of 82642211 is about 435.5793768377.

Adding to 82642211 its reverse (11224628), we get a palindrome (93866839).

The spelling of 82642211 in words is "eighty-two million, six hundred forty-two thousand, two hundred eleven".