73217263 has 8 divisors (see below), whose sum is σ = 85049120. Its totient is φ = 61728480.

The previous prime is 73217251. The next prime is 73217281. The reversal of 73217263 is 36271237.

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 73217263 - 2⁵ = 73217231 is a prime.

It is a super-2 number, since 2×73217263² = 10721535202422338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73217293) 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, 85308 + ... + 86161.

It is an arithmetic number, because the mean of its divisors is an integer number (10631140).

Almost surely, 2^73217263 is an apocalyptic number.

73217263 is a deficient number, since it is larger than the sum of its proper divisors (11831857).

73217263 is a wasteful number, since it uses less digits than its factorization.

73217263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171537.

The product of its digits is 10584, while the sum is 31.

The square root of 73217263 is about 8556.7086546171. The cubic root of 73217263 is about 418.3481280603.

The spelling of 73217263 in words is "seventy-three million, two hundred seventeen thousand, two hundred sixty-three".