83910493 has 2 divisors, whose sum is σ = 83910494. Its totient is φ = 83910492.

The previous prime is 83910481. The next prime is 83910553. The reversal of 83910493 is 39401938.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61042969 + 22867524 = 7813^2 + 4782^2 .

It is a cyclic number.

It is not a de Polignac number, because 83910493 - 2⁵ = 83910461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83910433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41955246 + 41955247.

It is an arithmetic number, because the mean of its divisors is an integer number (41955247).

Almost surely, 2^83910493 is an apocalyptic number.

It is an amenable number.

83910493 is a deficient number, since it is larger than the sum of its proper divisors (1).

83910493 is an equidigital number, since it uses as much as digits as its factorization.

83910493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 83910493 is about 9160.2670812591. The cubic root of 83910493 is about 437.7963040942.

The spelling of 83910493 in words is "eighty-three million, nine hundred ten thousand, four hundred ninety-three".