73210856 has 8 divisors (see below), whose sum is σ = 137270370. Its totient is φ = 36605424.

The previous prime is 73210849. The next prime is 73210859. The reversal of 73210856 is 65801237.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 68326756 + 4884100 = 8266^2 + 2210^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (73210859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4575671 + ... + 4575686.

Almost surely, 2^73210856 is an apocalyptic number.

It is an amenable number.

73210856 is a deficient number, since it is larger than the sum of its proper divisors (64059514).

73210856 is a wasteful number, since it uses less digits than its factorization.

73210856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9151363 (or 9151359 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 73210856 is about 8556.3342618203. The cubic root of 73210856 is about 418.3359249516.

The spelling of 73210856 in words is "seventy-three million, two hundred ten thousand, eight hundred fifty-six".