73285973 has 2 divisors, whose sum is σ = 73285974. Its totient is φ = 73285972.

The previous prime is 73285969. The next prime is 73285991. The reversal of 73285973 is 37958237.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 59320804 + 13965169 = 7702^2 + 3737^2 .

It is a cyclic number.

It is not a de Polignac number, because 73285973 - 2² = 73285969 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73285913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36642986 + 36642987.

It is an arithmetic number, because the mean of its divisors is an integer number (36642987).

Almost surely, 2^73285973 is an apocalyptic number.

It is an amenable number.

73285973 is a deficient number, since it is larger than the sum of its proper divisors (1).

73285973 is an equidigital number, since it uses as much as digits as its factorization.

73285973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 317520, while the sum is 44.

The square root of 73285973 is about 8560.7226914554. The cubic root of 73285973 is about 418.4789520020.

The spelling of 73285973 in words is "seventy-three million, two hundred eighty-five thousand, nine hundred seventy-three".