73445629 has 4 divisors (see below), whose sum is σ = 75430684. Its totient is φ = 71460576.

The previous prime is 73445611. The next prime is 73445633. The reversal of 73445629 is 92654437.

It is a happy number.

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 65577604 + 7868025 = 8098^2 + 2805^2 .

It is a cyclic number.

It is not a de Polignac number, because 73445629 - 2¹¹ = 73443581 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 73445591 and 73445600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73445609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 992472 + ... + 992545.

It is an arithmetic number, because the mean of its divisors is an integer number (18857671).

Almost surely, 2^73445629 is an apocalyptic number.

It is an amenable number.

73445629 is a deficient number, since it is larger than the sum of its proper divisors (1985055).

73445629 is a wasteful number, since it uses less digits than its factorization.

73445629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1985054.

The product of its digits is 181440, while the sum is 40.

The square root of 73445629 is about 8570.0425319831. The cubic root of 73445629 is about 418.7826218293.

The spelling of 73445629 in words is "seventy-three million, four hundred forty-five thousand, six hundred twenty-nine".