73632289 has 2 divisors, whose sum is σ = 73632290. Its totient is φ = 73632288.

The previous prime is 73632241. The next prime is 73632301. The reversal of 73632289 is 98223637.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66830625 + 6801664 = 8175^2 + 2608^2 .

It is a cyclic number.

It is not a de Polignac number, because 73632289 - 2¹³ = 73624097 is a prime.

It is not a weakly prime, because it can be changed into another prime (73632089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36816144 + 36816145.

It is an arithmetic number, because the mean of its divisors is an integer number (36816145).

Almost surely, 2^73632289 is an apocalyptic number.

It is an amenable number.

73632289 is a deficient number, since it is larger than the sum of its proper divisors (1).

73632289 is an equidigital number, since it uses as much as digits as its factorization.

73632289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 40.

The square root of 73632289 is about 8580.9258824442. The cubic root of 73632289 is about 419.1370964538.

The spelling of 73632289 in words is "seventy-three million, six hundred thirty-two thousand, two hundred eighty-nine".