73264289 has 16 divisors (see below), whose sum is σ = 85190400. Its totient is φ = 61713600.

The previous prime is 73264277. The next prime is 73264297. The reversal of 73264289 is 98246237.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 73264289 - 2⁴ = 73264273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73264229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 122012 + ... + 122610.

It is an arithmetic number, because the mean of its divisors is an integer number (5324400).

Almost surely, 2^73264289 is an apocalyptic number.

It is an amenable number.

73264289 is a deficient number, since it is larger than the sum of its proper divisors (11926111).

73264289 is a wasteful number, since it uses less digits than its factorization.

73264289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 880.

The product of its digits is 145152, while the sum is 41.

The square root of 73264289 is about 8559.4561158990. The cubic root of 73264289 is about 418.4376744680.

The spelling of 73264289 in words is "seventy-three million, two hundred sixty-four thousand, two hundred eighty-nine".