73320961 has 16 divisors (see below), whose sum is σ = 87004800. Its totient is φ = 60455808.

The previous prime is 73320931. The next prime is 73320967. The reversal of 73320961 is 16902337.

It is not a de Polignac number, because 73320961 - 2¹⁷ = 73189889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73320967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76461 + ... + 77413.

It is an arithmetic number, because the mean of its divisors is an integer number (5437800).

Almost surely, 2^73320961 is an apocalyptic number.

It is an amenable number.

73320961 is a deficient number, since it is larger than the sum of its proper divisors (13683839).

73320961 is a wasteful number, since it uses less digits than its factorization.

73320961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1368.

The product of its (nonzero) digits is 6804, while the sum is 31.

The square root of 73320961 is about 8562.7659666722. The cubic root of 73320961 is about 418.5455377869.

The spelling of 73320961 in words is "seventy-three million, three hundred twenty thousand, nine hundred sixty-one".