83307493 has 2 divisors, whose sum is σ = 83307494. Its totient is φ = 83307492.

The previous prime is 83307491. The next prime is 83307529. The reversal of 83307493 is 39470338.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79174404 + 4133089 = 8898^2 + 2033^2 .

It is a cyclic number.

It is not a de Polignac number, because 83307493 - 2¹ = 83307491 is a prime.

Together with 83307491, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83307491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41653746 + 41653747.

It is an arithmetic number, because the mean of its divisors is an integer number (41653747).

Almost surely, 2^83307493 is an apocalyptic number.

It is an amenable number.

83307493 is a deficient number, since it is larger than the sum of its proper divisors (1).

83307493 is an equidigital number, since it uses as much as digits as its factorization.

83307493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 37.

The square root of 83307493 is about 9127.2938486717. The cubic root of 83307493 is about 436.7450804801.

The spelling of 83307493 in words is "eighty-three million, three hundred seven thousand, four hundred ninety-three".