72048947 has 2 divisors, whose sum is σ = 72048948. Its totient is φ = 72048946.

The previous prime is 72048937. The next prime is 72048961. The reversal of 72048947 is 74984027.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72048947 - 2¹² = 72044851 is a prime.

It is not a weakly prime, because it can be changed into another prime (72048917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36024473 + 36024474.

It is an arithmetic number, because the mean of its divisors is an integer number (36024474).

Almost surely, 2^72048947 is an apocalyptic number.

72048947 is a deficient number, since it is larger than the sum of its proper divisors (1).

72048947 is an equidigital number, since it uses as much as digits as its factorization.

72048947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112896, while the sum is 41.

The square root of 72048947 is about 8488.1651138512. The cubic root of 72048947 is about 416.1110153510. Note that the first 3 decimals are identical.

The spelling of 72048947 in words is "seventy-two million, forty-eight thousand, nine hundred forty-seven".