73086973 has 2 divisors, whose sum is σ = 73086974. Its totient is φ = 73086972.

The previous prime is 73086941. The next prime is 73086983. The reversal of 73086973 is 37968037.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68343289 + 4743684 = 8267^2 + 2178^2 .

It is a cyclic number.

It is not a de Polignac number, because 73086973 - 2⁵ = 73086941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73086913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36543486 + 36543487.

It is an arithmetic number, because the mean of its divisors is an integer number (36543487).

Almost surely, 2^73086973 is an apocalyptic number.

It is an amenable number.

73086973 is a deficient number, since it is larger than the sum of its proper divisors (1).

73086973 is an equidigital number, since it uses as much as digits as its factorization.

73086973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 190512, while the sum is 43.

The square root of 73086973 is about 8549.0919400835. The cubic root of 73086973 is about 418.0998307834.

The spelling of 73086973 in words is "seventy-three million, eighty-six thousand, nine hundred seventy-three".