73320657 has 8 divisors (see below), whose sum is σ = 99418080. Its totient is φ = 48051840.

The previous prime is 73320641. The next prime is 73320661. The reversal of 73320657 is 75602337.

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

It is not a de Polignac number, because 73320657 - 2⁴ = 73320641 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (73320607) 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, 206944 + ... + 207297.

It is an arithmetic number, because the mean of its divisors is an integer number (12427260).

Almost surely, 2^73320657 is an apocalyptic number.

It is an amenable number.

73320657 is a deficient number, since it is larger than the sum of its proper divisors (26097423).

73320657 is a wasteful number, since it uses less digits than its factorization.

73320657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414303.

The product of its (nonzero) digits is 26460, while the sum is 33.

The square root of 73320657 is about 8562.7482153804. The cubic root of 73320657 is about 418.5449593347.

The spelling of 73320657 in words is "seventy-three million, three hundred twenty thousand, six hundred fifty-seven".