73328641 has 4 divisors (see below), whose sum is σ = 73354032. Its totient is φ = 73303252.

The previous prime is 73328639. The next prime is 73328663. The reversal of 73328641 is 14682337.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14682337 = 173 ⋅84869.

It is a cyclic number.

It is not a de Polignac number, because 73328641 - 2¹ = 73328639 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 73328597 and 73328606.

It is not an unprimeable number, because it can be changed into a prime (73328141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7711 + ... + 14356.

It is an arithmetic number, because the mean of its divisors is an integer number (18338508).

Almost surely, 2^73328641 is an apocalyptic number.

It is an amenable number.

73328641 is a deficient number, since it is larger than the sum of its proper divisors (25391).

73328641 is a wasteful number, since it uses less digits than its factorization.

73328641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25390.

The product of its digits is 24192, while the sum is 34.

The square root of 73328641 is about 8563.2144081531. The cubic root of 73328641 is about 418.5601507865.

The spelling of 73328641 in words is "seventy-three million, three hundred twenty-eight thousand, six hundred forty-one".