72207263 has 4 divisors (see below), whose sum is σ = 72226440. Its totient is φ = 72188088.

The previous prime is 72207257. The next prime is 72207287. The reversal of 72207263 is 36270227.

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

It is a cyclic number.

It is not a de Polignac number, because 72207263 - 2⁶ = 72207199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72207203) 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, 1868 + ... + 12161.

It is an arithmetic number, because the mean of its divisors is an integer number (18056610).

Almost surely, 2^72207263 is an apocalyptic number.

72207263 is a deficient number, since it is larger than the sum of its proper divisors (19177).

72207263 is a wasteful number, since it uses less digits than its factorization.

72207263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19176.

The product of its (nonzero) digits is 7056, while the sum is 29.

The square root of 72207263 is about 8497.4856869547. The cubic root of 72207263 is about 416.4155714510.

The spelling of 72207263 in words is "seventy-two million, two hundred seven thousand, two hundred sixty-three".