73428007 has 8 divisors (see below), whose sum is σ = 75609072. Its totient is φ = 71265600.

The previous prime is 73427993. The next prime is 73428011. The reversal of 73428007 is 70082437.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73428007 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 73428007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73428067) 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 7 ways as a sum of consecutive naturals, for example, 3532 + ... + 12622.

It is an arithmetic number, because the mean of its divisors is an integer number (9451134).

Almost surely, 2^73428007 is an apocalyptic number.

73428007 is a deficient number, since it is larger than the sum of its proper divisors (2181065).

73428007 is a wasteful number, since it uses less digits than its factorization.

73428007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9329.

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 73428007 is about 8569.0143540550. The cubic root of 73428007 is about 418.7491259505.

The spelling of 73428007 in words is "seventy-three million, four hundred twenty-eight thousand, seven".