83980297 has 2 divisors, whose sum is σ = 83980298. Its totient is φ = 83980296.

The previous prime is 83980277. The next prime is 83980331. The reversal of 83980297 is 79208938.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 77810041 + 6170256 = 8821^2 + 2484^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83980297 is a prime.

It is not a weakly prime, because it can be changed into another prime (83980207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41990148 + 41990149.

It is an arithmetic number, because the mean of its divisors is an integer number (41990149).

Almost surely, 2^83980297 is an apocalyptic number.

It is an amenable number.

83980297 is a deficient number, since it is larger than the sum of its proper divisors (1).

83980297 is an equidigital number, since it uses as much as digits as its factorization.

83980297 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 217728, while the sum is 46.

The square root of 83980297 is about 9164.0764401002. The cubic root of 83980297 is about 437.9176693804.

The spelling of 83980297 in words is "eighty-three million, nine hundred eighty thousand, two hundred ninety-seven".