73881473 has 8 divisors (see below), whose sum is σ = 80925480. Its totient is φ = 67137280.

The previous prime is 73881469. The next prime is 73881487. The reversal of 73881473 is 37418837.

It can be written as a sum of positive squares in 4 ways, for example, as 12306064 + 61575409 = 3508^2 + 7847^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 73881473 - 2² = 73881469 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 73881473.

It is not an unprimeable number, because it can be changed into a prime (73881413) 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 7 ways as a sum of consecutive naturals, for example, 74438 + ... + 75423.

It is an arithmetic number, because the mean of its divisors is an integer number (10115685).

Almost surely, 2^73881473 is an apocalyptic number.

It is an amenable number.

73881473 is a deficient number, since it is larger than the sum of its proper divisors (7044007).

73881473 is a wasteful number, since it uses less digits than its factorization.

73881473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149907.

The product of its digits is 112896, while the sum is 41.

The square root of 73881473 is about 8595.4332642398. The cubic root of 73881473 is about 419.6093741459.

The spelling of 73881473 in words is "seventy-three million, eight hundred eighty-one thousand, four hundred seventy-three".