83980597 has 2 divisors, whose sum is σ = 83980598. Its totient is φ = 83980596.

The previous prime is 83980573. The next prime is 83980609. The reversal of 83980597 is 79508938.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67667076 + 16313521 = 8226^2 + 4039^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83980597 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 83980597.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83980097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41990298 + 41990299.

It is an arithmetic number, because the mean of its divisors is an integer number (41990299).

Almost surely, 2^83980597 is an apocalyptic number.

It is an amenable number.

83980597 is a deficient number, since it is larger than the sum of its proper divisors (1).

83980597 is an equidigital number, since it uses as much as digits as its factorization.

83980597 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 544320, while the sum is 49.

The square root of 83980597 is about 9164.0928083472. The cubic root of 83980597 is about 437.9181908326.

The spelling of 83980597 in words is "eighty-three million, nine hundred eighty thousand, five hundred ninety-seven".