73226866 has 4 divisors (see below), whose sum is σ = 109840302. Its totient is φ = 36613432.

The previous prime is 73226863. The next prime is 73226873. The reversal of 73226866 is 66862237.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 66862237 = 13 ⋅5143249.

It can be written as a sum of positive squares in only one way, i.e., 72743841 + 483025 = 8529^2 + 695^2 .

It is not an unprimeable number, because it can be changed into a prime (73226863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18306715 + ... + 18306718.

Almost surely, 2^73226866 is an apocalyptic number.

73226866 is a deficient number, since it is larger than the sum of its proper divisors (36613436).

73226866 is a wasteful number, since it uses less digits than its factorization.

73226866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36613435.

The product of its digits is 145152, while the sum is 40.

The square root of 73226866 is about 8557.2697748756. The cubic root of 73226866 is about 418.3664171052.

The spelling of 73226866 in words is "seventy-three million, two hundred twenty-six thousand, eight hundred sixty-six".