72736773 has 8 divisors (see below), whose sum is σ = 97086528. Its totient is φ = 48439104.

The previous prime is 72736771. The next prime is 72736789. The reversal of 72736773 is 37763727.

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

It is not a de Polignac number, because 72736773 - 2¹ = 72736771 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72736771) 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, 9636 + ... + 15437.

It is an arithmetic number, because the mean of its divisors is an integer number (12135816).

Almost surely, 2^72736773 is an apocalyptic number.

It is an amenable number.

72736773 is a deficient number, since it is larger than the sum of its proper divisors (24349755).

72736773 is a wasteful number, since it uses less digits than its factorization.

72736773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26043.

The product of its digits is 259308, while the sum is 42.

The square root of 72736773 is about 8528.5856388970. The cubic root of 72736773 is about 417.4309790643.

The spelling of 72736773 in words is "seventy-two million, seven hundred thirty-six thousand, seven hundred seventy-three".