72247011 has 4 divisors (see below), whose sum is σ = 96329352. Its totient is φ = 48164672.

The previous prime is 72246989. The next prime is 72247027. The reversal of 72247011 is 11074227.

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 72247011 - 2⁶ = 72246947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72247711) 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, 12041166 + ... + 12041171.

It is an arithmetic number, because the mean of its divisors is an integer number (24082338).

Almost surely, 2^72247011 is an apocalyptic number.

72247011 is a deficient number, since it is larger than the sum of its proper divisors (24082341).

72247011 is a wasteful number, since it uses less digits than its factorization.

72247011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24082340.

The product of its (nonzero) digits is 784, while the sum is 24.

The square root of 72247011 is about 8499.8241746521. The cubic root of 72247011 is about 416.4919656590.

The spelling of 72247011 in words is "seventy-two million, two hundred forty-seven thousand, eleven".