84160397 has 2 divisors, whose sum is σ = 84160398. Its totient is φ = 84160396.

The previous prime is 84160369. The next prime is 84160429. The reversal of 84160397 is 79306148.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79941481 + 4218916 = 8941^2 + 2054^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84160397 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 84160397.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84160327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42080198 + 42080199.

It is an arithmetic number, because the mean of its divisors is an integer number (42080199).

Almost surely, 2^84160397 is an apocalyptic number.

It is an amenable number.

84160397 is a deficient number, since it is larger than the sum of its proper divisors (1).

84160397 is an equidigital number, since it uses as much as digits as its factorization.

84160397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 84160397 is about 9173.8975904465. The cubic root of 84160397 is about 438.2304914059.

The spelling of 84160397 in words is "eighty-four million, one hundred sixty thousand, three hundred ninety-seven".