83430073 has 2 divisors, whose sum is σ = 83430074. Its totient is φ = 83430072.

The previous prime is 83430049. The next prime is 83430089. The reversal of 83430073 is 37003438.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46621584 + 36808489 = 6828^2 + 6067^2 .

It is a cyclic number.

It is not a de Polignac number, because 83430073 - 2¹⁷ = 83299001 is a prime.

It is not a weakly prime, because it can be changed into another prime (83430043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41715036 + 41715037.

It is an arithmetic number, because the mean of its divisors is an integer number (41715037).

Almost surely, 2^83430073 is an apocalyptic number.

It is an amenable number.

83430073 is a deficient number, since it is larger than the sum of its proper divisors (1).

83430073 is an equidigital number, since it uses as much as digits as its factorization.

83430073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 83430073 is about 9134.0064046398. The cubic root of 83430073 is about 436.9591867726.

The spelling of 83430073 in words is "eighty-three million, four hundred thirty thousand, seventy-three".