73420399 has 8 divisors (see below), whose sum is σ = 83719440. Its totient is φ = 63785856.

The previous prime is 73420379. The next prime is 73420421. The reversal of 73420399 is 99302437.

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 73420399 - 2¹¹ = 73418351 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 (73420379) 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, 165889 + ... + 166330.

It is an arithmetic number, because the mean of its divisors is an integer number (10464930).

Almost surely, 2^73420399 is an apocalyptic number.

73420399 is a deficient number, since it is larger than the sum of its proper divisors (10299041).

73420399 is a wasteful number, since it uses less digits than its factorization.

73420399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332249.

The product of its (nonzero) digits is 40824, while the sum is 37.

The square root of 73420399 is about 8568.5704175201. The cubic root of 73420399 is about 418.7346630159.

The spelling of 73420399 in words is "seventy-three million, four hundred twenty thousand, three hundred ninety-nine".