73628399 has 12 divisors (see below), whose sum is σ = 80180352. Its totient is φ = 67579200.

The previous prime is 73628383. The next prime is 73628407. The reversal of 73628399 is 99382637.

It is not a de Polignac number, because 73628399 - 2⁴ = 73628383 is a prime.

It is a super-2 number, since 2×73628399² = 10842282278606402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73628329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31139 + ... + 33419.

It is an arithmetic number, because the mean of its divisors is an integer number (6681696).

Almost surely, 2^73628399 is an apocalyptic number.

73628399 is a deficient number, since it is larger than the sum of its proper divisors (6551953).

73628399 is a wasteful number, since it uses less digits than its factorization.

73628399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2498 (or 2485 counting only the distinct ones).

The product of its digits is 489888, while the sum is 47.

The square root of 73628399 is about 8580.6992139336. The cubic root of 73628399 is about 419.1297153078.

The spelling of 73628399 in words is "seventy-three million, six hundred twenty-eight thousand, three hundred ninety-nine".