73216775 has 24 divisors (see below), whose sum is σ = 94608528. Its totient is φ = 56160000.

The previous prime is 73216771. The next prime is 73216777. The reversal of 73216775 is 57761237.

It is not a de Polignac number, because 73216775 - 2² = 73216771 is a prime.

It is a super-2 number, since 2×73216775² = 10721392282801250, 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 (73216771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61940 + ... + 63110.

It is an arithmetic number, because the mean of its divisors is an integer number (3942022).

Almost surely, 2^73216775 is an apocalyptic number.

73216775 is a deficient number, since it is larger than the sum of its proper divisors (21391753).

73216775 is a wasteful number, since it uses less digits than its factorization.

73216775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1283 (or 1278 counting only the distinct ones).

The product of its digits is 61740, while the sum is 38.

The square root of 73216775 is about 8556.6801389324. The cubic root of 73216775 is about 418.3471986149.

The spelling of 73216775 in words is "seventy-three million, two hundred sixteen thousand, seven hundred seventy-five".