73968481 has 4 divisors (see below), whose sum is σ = 73994692. Its totient is φ = 73942272.

The previous prime is 73968451. The next prime is 73968493. The reversal of 73968481 is 18486937.

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 63856081 + 10112400 = 7991^2 + 3180^2 .

It is a cyclic number.

It is not a de Polignac number, because 73968481 - 2⁷ = 73968353 is a prime.

It is a super-2 number, since 2×73968481² = 10942672362894722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73968421) 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, 8280 + ... + 14713.

It is an arithmetic number, because the mean of its divisors is an integer number (18498673).

Almost surely, 2^73968481 is an apocalyptic number.

It is an amenable number.

73968481 is a deficient number, since it is larger than the sum of its proper divisors (26211).

73968481 is a wasteful number, since it uses less digits than its factorization.

73968481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26210.

The product of its digits is 290304, while the sum is 46.

The square root of 73968481 is about 8600.4930672607. The cubic root of 73968481 is about 419.7740299941.

The spelling of 73968481 in words is "seventy-three million, nine hundred sixty-eight thousand, four hundred eighty-one".