72436726 has 8 divisors (see below), whose sum is σ = 108727920. Its totient is φ = 36194088.

The previous prime is 72436723. The next prime is 72436747. The reversal of 72436726 is 62763427.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72436723) 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, 8146 + ... + 14533.

It is an arithmetic number, because the mean of its divisors is an integer number (13590990).

Almost surely, 2^72436726 is an apocalyptic number.

72436726 is a deficient number, since it is larger than the sum of its proper divisors (36291194).

72436726 is a wasteful number, since it uses less digits than its factorization.

72436726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24278.

The product of its digits is 84672, while the sum is 37.

The square root of 72436726 is about 8510.9767947046. The cubic root of 72436726 is about 416.8562054648.

The spelling of 72436726 in words is "seventy-two million, four hundred thirty-six thousand, seven hundred twenty-six".