73228287 has 8 divisors (see below), whose sum is σ = 106513920. Its totient is φ = 44380760.

The previous prime is 73228279. The next prime is 73228289. The reversal of 73228287 is 78282237.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 73228287 - 2³ = 73228279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73228289) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1109487 + ... + 1109552.

It is an arithmetic number, because the mean of its divisors is an integer number (13314240).

Almost surely, 2^73228287 is an apocalyptic number.

73228287 is a deficient number, since it is larger than the sum of its proper divisors (33285633).

73228287 is a wasteful number, since it uses less digits than its factorization.

73228287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2219053.

The product of its digits is 75264, while the sum is 39.

The square root of 73228287 is about 8557.3528032914. The cubic root of 73228287 is about 418.3691232834.

The spelling of 73228287 in words is "seventy-three million, two hundred twenty-eight thousand, two hundred eighty-seven".