82573397 has 2 divisors, whose sum is σ = 82573398. Its totient is φ = 82573396.

The previous prime is 82573363. The next prime is 82573441. The reversal of 82573397 is 79337528.

It is an a-pointer prime, because the next prime (82573441) can be obtained adding 82573397 to its sum of digits (44).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 80748196 + 1825201 = 8986^2 + 1351^2 .

It is a cyclic number.

It is not a de Polignac number, because 82573397 - 2¹² = 82569301 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82573327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41286698 + 41286699.

It is an arithmetic number, because the mean of its divisors is an integer number (41286699).

Almost surely, 2^82573397 is an apocalyptic number.

It is an amenable number.

82573397 is a deficient number, since it is larger than the sum of its proper divisors (1).

82573397 is an equidigital number, since it uses as much as digits as its factorization.

82573397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 317520, while the sum is 44.

The square root of 82573397 is about 9086.9905359255. The cubic root of 82573397 is about 435.4584447610.

The spelling of 82573397 in words is "eighty-two million, five hundred seventy-three thousand, three hundred ninety-seven".