73057881 has 16 divisors (see below), whose sum is σ = 107138304. Its totient is φ = 44001024.

The previous prime is 73057861. The next prime is 73057883. The reversal of 73057881 is 18875037.

It is not a de Polignac number, because 73057881 - 2¹⁰ = 73056857 is a prime.

It is a super-2 number, since 2×73057881² = 10674907952420322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (73057883) 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 15 ways as a sum of consecutive naturals, for example, 18096 + ... + 21761.

It is an arithmetic number, because the mean of its divisors is an integer number (6696144).

Almost surely, 2^73057881 is an apocalyptic number.

It is an amenable number.

73057881 is a deficient number, since it is larger than the sum of its proper divisors (34080423).

73057881 is a wasteful number, since it uses less digits than its factorization.

73057881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39920.

The product of its (nonzero) digits is 47040, while the sum is 39.

The square root of 73057881 is about 8547.3903034786. The cubic root of 73057881 is about 418.0443490562.

The spelling of 73057881 in words is "seventy-three million, fifty-seven thousand, eight hundred eighty-one".