83328913 has 2 divisors, whose sum is σ = 83328914. Its totient is φ = 83328912.

The previous prime is 83328911. The next prime is 83328941. The reversal of 83328913 is 31982338.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68095504 + 15233409 = 8252^2 + 3903^2 .

It is a cyclic number.

It is not a de Polignac number, because 83328913 - 2¹ = 83328911 is a prime.

Together with 83328911, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (83328911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41664456 + 41664457.

It is an arithmetic number, because the mean of its divisors is an integer number (41664457).

Almost surely, 2^83328913 is an apocalyptic number.

It is an amenable number.

83328913 is a deficient number, since it is larger than the sum of its proper divisors (1).

83328913 is an equidigital number, since it uses as much as digits as its factorization.

83328913 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 37.

The square root of 83328913 is about 9128.4671769142. The cubic root of 83328913 is about 436.7825091979.

The spelling of 83328913 in words is "eighty-three million, three hundred twenty-eight thousand, nine hundred thirteen".