7272170707 has 4 divisors (see below), whose sum is σ = 7441291000. Its totient is φ = 7103050416.

The previous prime is 7272170683. The next prime is 7272170723. The reversal of 7272170707 is 7070712727.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7272170707 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7272170707.

It is not an unprimeable number, because it can be changed into a prime (7272170747) 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, 84560082 + ... + 84560167.

It is an arithmetic number, because the mean of its divisors is an integer number (1860322750).

Almost surely, 2^7272170707 is an apocalyptic number.

7272170707 is a deficient number, since it is larger than the sum of its proper divisors (169120293).

7272170707 is a wasteful number, since it uses less digits than its factorization.

7272170707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169120292.

The product of its (nonzero) digits is 67228, while the sum is 40.

The square root of 7272170707 is about 85277.0233239880. The cubic root of 7272170707 is about 1937.4091879018.

The spelling of 7272170707 in words is "seven billion, two hundred seventy-two million, one hundred seventy thousand, seven hundred seven".