73344661 has 4 divisors (see below), whose sum is σ = 78986572. Its totient is φ = 67702752.

The previous prime is 73344643. The next prime is 73344671. The reversal of 73344661 is 16644337.

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 6922161 + 66422500 = 2631^2 + 8150^2 .

It is not a de Polignac number, because 73344661 - 2¹⁷ = 73213589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73344671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2820936 + ... + 2820961.

It is an arithmetic number, because the mean of its divisors is an integer number (19746643).

Almost surely, 2^73344661 is an apocalyptic number.

It is an amenable number.

73344661 is a deficient number, since it is larger than the sum of its proper divisors (5641911).

73344661 is a wasteful number, since it uses less digits than its factorization.

73344661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5641910.

The product of its digits is 36288, while the sum is 34.

The square root of 73344661 is about 8564.1497534782. The cubic root of 73344661 is about 418.5906293065.

Adding to 73344661 its reverse (16644337), we get a palindrome (89988998).

The spelling of 73344661 in words is "seventy-three million, three hundred forty-four thousand, six hundred sixty-one".