73590721 has 8 divisors (see below), whose sum is σ = 74781504. Its totient is φ = 72409200.

The previous prime is 73590709. The next prime is 73590733. The reversal of 73590721 is 12709537.

It is an interprime number because it is at equal distance from previous prime (73590709) and next prime (73590733).

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 73590721 - 2⁵ = 73590689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73590701) 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, 14686 + ... + 19048.

It is an arithmetic number, because the mean of its divisors is an integer number (9347688).

Almost surely, 2^73590721 is an apocalyptic number.

It is an amenable number.

73590721 is a deficient number, since it is larger than the sum of its proper divisors (1190783).

73590721 is a wasteful number, since it uses less digits than its factorization.

73590721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4631.

The product of its (nonzero) digits is 13230, while the sum is 34.

The square root of 73590721 is about 8578.5034242576. The cubic root of 73590721 is about 419.0582090949.

The spelling of 73590721 in words is "seventy-three million, five hundred ninety thousand, seven hundred twenty-one".