73241989 has 2 divisors, whose sum is σ = 73241990. Its totient is φ = 73241988.

The previous prime is 73241983. The next prime is 73241999. The reversal of 73241989 is 98914237.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36844900 + 36397089 = 6070^2 + 6033^2 .

It is a cyclic number.

It is not a de Polignac number, because 73241989 - 2⁵ = 73241957 is a prime.

It is a super-2 number, since 2×73241989² = 10728777905352242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73241983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36620994 + 36620995.

It is an arithmetic number, because the mean of its divisors is an integer number (36620995).

Almost surely, 2^73241989 is an apocalyptic number.

It is an amenable number.

73241989 is a deficient number, since it is larger than the sum of its proper divisors (1).

73241989 is an equidigital number, since it uses as much as digits as its factorization.

73241989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108864, while the sum is 43.

The square root of 73241989 is about 8558.1533638981. The cubic root of 73241989 is about 418.3952158243.

The spelling of 73241989 in words is "seventy-three million, two hundred forty-one thousand, nine hundred eighty-nine".