1972047227 has 2 divisors, whose sum is σ = 1972047228. Its totient is φ = 1972047226.

The previous prime is 1972047193. The next prime is 1972047239. The reversal of 1972047227 is 7227402791.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1972047227 - 2²⁰ = 1970998651 is a prime.

It is not a weakly prime, because it can be changed into another prime (1972047257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 986023613 + 986023614.

It is an arithmetic number, because the mean of its divisors is an integer number (986023614).

Almost surely, 2^1972047227 is an apocalyptic number.

1972047227 is a deficient number, since it is larger than the sum of its proper divisors (1).

1972047227 is an equidigital number, since it uses as much as digits as its factorization.

1972047227 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 98784, while the sum is 41.

The square root of 1972047227 is about 44407.7383684420. The cubic root of 1972047227 is about 1254.0237752480.

The spelling of 1972047227 in words is "one billion, nine hundred seventy-two million, forty-seven thousand, two hundred twenty-seven".