34220500397 has 2 divisors, whose sum is σ = 34220500398. Its totient is φ = 34220500396.

The previous prime is 34220500361. The next prime is 34220500403. The reversal of 34220500397 is 79300502243.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30254775721 + 3965724676 = 173939^2 + 62974^2 .

It is an emirp because it is prime and its reverse (79300502243) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 34220500397 - 2⁶ = 34220500333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34220500597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17110250198 + 17110250199.

It is an arithmetic number, because the mean of its divisors is an integer number (17110250199).

Almost surely, 2^34220500397 is an apocalyptic number.

It is an amenable number.

34220500397 is a deficient number, since it is larger than the sum of its proper divisors (1).

34220500397 is an equidigital number, since it uses as much as digits as its factorization.

34220500397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45360, while the sum is 35.

The spelling of 34220500397 in words is "thirty-four billion, two hundred twenty million, five hundred thousand, three hundred ninety-seven".