83814197 has 2 divisors, whose sum is σ = 83814198. Its totient is φ = 83814196.

The previous prime is 83814179. The next prime is 83814221. The reversal of 83814197 is 79141838.

Together with previous prime (83814179) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 80748196 + 3066001 = 8986^2 + 1751^2 .

It is a cyclic number.

It is not a de Polignac number, because 83814197 - 2¹² = 83810101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83814167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41907098 + 41907099.

It is an arithmetic number, because the mean of its divisors is an integer number (41907099).

Almost surely, 2^83814197 is an apocalyptic number.

It is an amenable number.

83814197 is a deficient number, since it is larger than the sum of its proper divisors (1).

83814197 is an equidigital number, since it uses as much as digits as its factorization.

83814197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48384, while the sum is 41.

The square root of 83814197 is about 9155.0093937691. The cubic root of 83814197 is about 437.6287677564.

The spelling of 83814197 in words is "eighty-three million, eight hundred fourteen thousand, one hundred ninety-seven".