82652321 has 4 divisors (see below), whose sum is σ = 84574512. Its totient is φ = 80730132.

The previous prime is 82652303. The next prime is 82652327. The reversal of 82652321 is 12325628.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82652321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82652327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 961031 + ... + 961116.

It is an arithmetic number, because the mean of its divisors is an integer number (21143628).

Almost surely, 2^82652321 is an apocalyptic number.

It is an amenable number.

82652321 is a deficient number, since it is larger than the sum of its proper divisors (1922191).

82652321 is a wasteful number, since it uses less digits than its factorization.

82652321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1922190.

The product of its digits is 5760, while the sum is 29.

The square root of 82652321 is about 9091.3321906088. The cubic root of 82652321 is about 435.5971382532.

Adding to 82652321 its reverse (12325628), we get a palindrome (94977949).

The spelling of 82652321 in words is "eighty-two million, six hundred fifty-two thousand, three hundred twenty-one".