73573901 has 2 divisors, whose sum is σ = 73573902. Its totient is φ = 73573900.

The previous prime is 73573891. The next prime is 73573931. The reversal of 73573901 is 10937537.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56640676 + 16933225 = 7526^2 + 4115^2 .

It is a cyclic number.

It is not a de Polignac number, because 73573901 - 2⁶ = 73573837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73573931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36786950 + 36786951.

It is an arithmetic number, because the mean of its divisors is an integer number (36786951).

Almost surely, 2^73573901 is an apocalyptic number.

It is an amenable number.

73573901 is a deficient number, since it is larger than the sum of its proper divisors (1).

73573901 is an equidigital number, since it uses as much as digits as its factorization.

73573901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19845, while the sum is 35.

The square root of 73573901 is about 8577.5230107532. The cubic root of 73573901 is about 419.0262798151.

The spelling of 73573901 in words is "seventy-three million, five hundred seventy-three thousand, nine hundred one".