73320397 has 8 divisors (see below), whose sum is σ = 74497280. Its totient is φ = 72148320.

The previous prime is 73320293. The next prime is 73320419. The reversal of 73320397 is 79302337.

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 73320397 - 2¹⁹ = 72796109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73320697) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40804 + ... + 42562.

It is an arithmetic number, because the mean of its divisors is an integer number (9312160).

Almost surely, 2^73320397 is an apocalyptic number.

It is an amenable number.

73320397 is a deficient number, since it is larger than the sum of its proper divisors (1176883).

73320397 is a wasteful number, since it uses less digits than its factorization.

73320397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2403.

The product of its (nonzero) digits is 23814, while the sum is 34.

The square root of 73320397 is about 8562.7330333253. The cubic root of 73320397 is about 418.5444646046.

The spelling of 73320397 in words is "seventy-three million, three hundred twenty thousand, three hundred ninety-seven".