1972966227 has 4 divisors (see below), whose sum is σ = 2630621640. Its totient is φ = 1315310816.

The previous prime is 1972966199. The next prime is 1972966231. The reversal of 1972966227 is 7226692791.

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 1972966227 - 2⁸ = 1972965971 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1972966227.

It is not an unprimeable number, because it can be changed into a prime (1972966627) 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, 328827702 + ... + 328827707.

It is an arithmetic number, because the mean of its divisors is an integer number (657655410).

Almost surely, 2^1972966227 is an apocalyptic number.

1972966227 is a deficient number, since it is larger than the sum of its proper divisors (657655413).

1972966227 is an equidigital number, since it uses as much as digits as its factorization.

1972966227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 657655412.

The product of its digits is 1143072, while the sum is 51.

The square root of 1972966227 is about 44418.0844589228. The cubic root of 1972966227 is about 1254.2185421990.

The spelling of 1972966227 in words is "one billion, nine hundred seventy-two million, nine hundred sixty-six thousand, two hundred twenty-seven".