72787343 has 4 divisors (see below), whose sum is σ = 72873528. Its totient is φ = 72701160.

The previous prime is 72787333. The next prime is 72787357. The reversal of 72787343 is 34378727.

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

It is a cyclic number.

It is not a de Polignac number, because 72787343 - 2⁴ = 72787327 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 72787343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72787333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41813 + ... + 43518.

It is an arithmetic number, because the mean of its divisors is an integer number (18218382).

Almost surely, 2^72787343 is an apocalyptic number.

72787343 is a deficient number, since it is larger than the sum of its proper divisors (86185).

72787343 is an equidigital number, since it uses as much as digits as its factorization.

72787343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86184.

The product of its digits is 197568, while the sum is 41.

The square root of 72787343 is about 8531.5498591991. The cubic root of 72787343 is about 417.5276958213.

The spelling of 72787343 in words is "seventy-two million, seven hundred eighty-seven thousand, three hundred forty-three".