83950513 has 2 divisors, whose sum is σ = 83950514. Its totient is φ = 83950512.

The previous prime is 83950481. The next prime is 83950519. The reversal of 83950513 is 31505938.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56670784 + 27279729 = 7528^2 + 5223^2 .

It is a cyclic number.

It is not a de Polignac number, because 83950513 - 2⁵ = 83950481 is a prime.

It is not a weakly prime, because it can be changed into another prime (83950519) 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, 41975256 + 41975257.

It is an arithmetic number, because the mean of its divisors is an integer number (41975257).

Almost surely, 2^83950513 is an apocalyptic number.

It is an amenable number.

83950513 is a deficient number, since it is larger than the sum of its proper divisors (1).

83950513 is an equidigital number, since it uses as much as digits as its factorization.

83950513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16200, while the sum is 34.

The square root of 83950513 is about 9162.4512549863. The cubic root of 83950513 is about 437.8658934181.

The spelling of 83950513 in words is "eighty-three million, nine hundred fifty thousand, five hundred thirteen".