73028866 has 4 divisors (see below), whose sum is σ = 109543302. Its totient is φ = 36514432.

The previous prime is 73028833. The next prime is 73028869. The reversal of 73028866 is 66882037.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 66882037 = 419 ⋅159623.

It can be written as a sum of positive squares in only one way, i.e., 71149225 + 1879641 = 8435^2 + 1371^2 .

It is not an unprimeable number, because it can be changed into a prime (73028869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18257215 + ... + 18257218.

Almost surely, 2^73028866 is an apocalyptic number.

73028866 is a deficient number, since it is larger than the sum of its proper divisors (36514436).

73028866 is a wasteful number, since it uses less digits than its factorization.

73028866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36514435.

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 73028866 is about 8545.6928332348. The cubic root of 73028866 is about 417.9889995045.

The spelling of 73028866 in words is "seventy-three million, twenty-eight thousand, eight hundred sixty-six".