73433645 has 4 divisors (see below), whose sum is σ = 88120380. Its totient is φ = 58746912.

The previous prime is 73433623. The next prime is 73433663. The reversal of 73433645 is 54633437.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 39363076 + 34070569 = 6274^2 + 5837^2 .

It is a cyclic number.

It is not a de Polignac number, because 73433645 - 2¹⁰ = 73432621 is a prime.

It is a super-3 number, since 3×73433645³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7343360 + ... + 7343369.

It is an arithmetic number, because the mean of its divisors is an integer number (22030095).

Almost surely, 2^73433645 is an apocalyptic number.

It is an amenable number.

73433645 is a deficient number, since it is larger than the sum of its proper divisors (14686735).

73433645 is a wasteful number, since it uses less digits than its factorization.

73433645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14686734.

The product of its digits is 90720, while the sum is 35.

The square root of 73433645 is about 8569.3433237326. The cubic root of 73433645 is about 418.7598432378.

The spelling of 73433645 in words is "seventy-three million, four hundred thirty-three thousand, six hundred forty-five".