72073798 has 4 divisors (see below), whose sum is σ = 108110700. Its totient is φ = 36036898.

The previous prime is 72073769. The next prime is 72073801. The reversal of 72073798 is 89737027.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 18018448 + ... + 18018451.

It is an arithmetic number, because the mean of its divisors is an integer number (27027675).

Almost surely, 2^72073798 is an apocalyptic number.

72073798 is a deficient number, since it is larger than the sum of its proper divisors (36036902).

72073798 is a wasteful number, since it uses less digits than its factorization.

72073798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36036901.

The product of its (nonzero) digits is 148176, while the sum is 43.

The square root of 72073798 is about 8489.6288493667. The cubic root of 72073798 is about 416.1588512857.

The spelling of 72073798 in words is "seventy-two million, seventy-three thousand, seven hundred ninety-eight".