72727366 has 4 divisors (see below), whose sum is σ = 109091052. Its totient is φ = 36363682.

The previous prime is 72727351. The next prime is 72727367. The reversal of 72727366 is 66372727.

It is a happy number.

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

It is a Smith number, since the sum of its digits (40) 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 (72727367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18181840 + ... + 18181843.

It is an arithmetic number, because the mean of its divisors is an integer number (27272763).

Almost surely, 2^72727366 is an apocalyptic number.

72727366 is a deficient number, since it is larger than the sum of its proper divisors (36363686).

72727366 is a wasteful number, since it uses less digits than its factorization.

72727366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36363685.

The product of its digits is 148176, while the sum is 40.

The square root of 72727366 is about 8528.0341228210. The cubic root of 72727366 is about 417.4129829285.

The spelling of 72727366 in words is "seventy-two million, seven hundred twenty-seven thousand, three hundred sixty-six".