82819097 has 4 divisors (see below), whose sum is σ = 83867520. Its totient is φ = 81770676.

The previous prime is 82819069. The next prime is 82819127. The reversal of 82819097 is 79091828.

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 not a de Polignac number, because 82819097 - 2²⁴ = 66041881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82819027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 524093 + ... + 524250.

It is an arithmetic number, because the mean of its divisors is an integer number (20966880).

Almost surely, 2^82819097 is an apocalyptic number.

It is an amenable number.

82819097 is a deficient number, since it is larger than the sum of its proper divisors (1048423).

82819097 is a wasteful number, since it uses less digits than its factorization.

82819097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1048422.

The product of its (nonzero) digits is 72576, while the sum is 44.

The square root of 82819097 is about 9100.4998214384. The cubic root of 82819097 is about 435.8899243062.

The spelling of 82819097 in words is "eighty-two million, eight hundred nineteen thousand, ninety-seven".