72796186 has 8 divisors (see below), whose sum is σ = 109232244. Its totient is φ = 36385440.

The previous prime is 72796169. The next prime is 72796187. The reversal of 72796186 is 68169727.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 72777961 + 18225 = 8531^2 + 135^2 .

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

It is a super-4 number, since 4×72796186⁴ (a number of 33 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (72796187) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 4726 + ... + 12958.

Almost surely, 2^72796186 is an apocalyptic number.

72796186 is a deficient number, since it is larger than the sum of its proper divisors (36436058).

72796186 is a wasteful number, since it uses less digits than its factorization.

72796186 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12656.

The product of its digits is 254016, while the sum is 46.

The square root of 72796186 is about 8532.0680963058. The cubic root of 72796186 is about 417.5446037421.

The spelling of 72796186 in words is "seventy-two million, seven hundred ninety-six thousand, one hundred eighty-six".