83070073 has 2 divisors, whose sum is σ = 83070074. Its totient is φ = 83070072.

The previous prime is 83070047. The next prime is 83070101. The reversal of 83070073 is 37007038.

It is an a-pointer prime, because the next prime (83070101) can be obtained adding 83070073 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 78287104 + 4782969 = 8848^2 + 2187^2 .

It is a cyclic number.

It is not a de Polignac number, because 83070073 - 2⁹ = 83069561 is a prime.

It is not a weakly prime, because it can be changed into another prime (83070373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41535036 + 41535037.

It is an arithmetic number, because the mean of its divisors is an integer number (41535037).

Almost surely, 2^83070073 is an apocalyptic number.

It is an amenable number.

83070073 is a deficient number, since it is larger than the sum of its proper divisors (1).

83070073 is an equidigital number, since it uses as much as digits as its factorization.

83070073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3528, while the sum is 28.

The square root of 83070073 is about 9114.2785232842. The cubic root of 83070073 is about 436.3297889926.

The spelling of 83070073 in words is "eighty-three million, seventy thousand, seventy-three".