72229786 has 8 divisors (see below), whose sum is σ = 108514080. Its totient is φ = 36058428.

The previous prime is 72229733. The next prime is 72229799. The reversal of 72229786 is 68792227.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26616 + ... + 29203.

It is an arithmetic number, because the mean of its divisors is an integer number (13564260).

Almost surely, 2^72229786 is an apocalyptic number.

72229786 is a deficient number, since it is larger than the sum of its proper divisors (36284294).

72229786 is a wasteful number, since it uses less digits than its factorization.

72229786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56468.

The product of its digits is 169344, while the sum is 43.

The square root of 72229786 is about 8498.8108579965. The cubic root of 72229786 is about 416.4588632776.

The spelling of 72229786 in words is "seventy-two million, two hundred twenty-nine thousand, seven hundred eighty-six".