73217369 has 2 divisors, whose sum is σ = 73217370. Its totient is φ = 73217368.

The previous prime is 73217329. The next prime is 73217383. The reversal of 73217369 is 96371237.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43099225 + 30118144 = 6565^2 + 5488^2 .

It is a cyclic number.

It is not a de Polignac number, because 73217369 - 2²⁰ = 72168793 is a prime.

It is a super-2 number, since 2×73217369² = 10721566246564322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (73217329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36608684 + 36608685.

It is an arithmetic number, because the mean of its divisors is an integer number (36608685).

Almost surely, 2^73217369 is an apocalyptic number.

It is an amenable number.

73217369 is a deficient number, since it is larger than the sum of its proper divisors (1).

73217369 is an equidigital number, since it uses as much as digits as its factorization.

73217369 is an evil number, because the sum of its binary digits is even.

The product of its digits is 47628, while the sum is 38.

The square root of 73217369 is about 8556.7148485853. The cubic root of 73217369 is about 418.3483299474.

The spelling of 73217369 in words is "seventy-three million, two hundred seventeen thousand, three hundred sixty-nine".