72200665 has 8 divisors (see below), whose sum is σ = 91200960. Its totient is φ = 54720432.

The previous prime is 72200663. The next prime is 72200669. The reversal of 72200665 is 56600227.

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

It is a cyclic number.

It is not a de Polignac number, because 72200665 - 2¹ = 72200663 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72200663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 379909 + ... + 380098.

It is an arithmetic number, because the mean of its divisors is an integer number (11400120).

Almost surely, 2^72200665 is an apocalyptic number.

It is an amenable number.

72200665 is a deficient number, since it is larger than the sum of its proper divisors (19000295).

72200665 is a wasteful number, since it uses less digits than its factorization.

72200665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 760031.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 72200665 is about 8497.0974455987. The cubic root of 72200665 is about 416.4028876225.

The spelling of 72200665 in words is "seventy-two million, two hundred thousand, six hundred sixty-five".