1972966627 has 2 divisors, whose sum is σ = 1972966628. Its totient is φ = 1972966626.

The previous prime is 1972966609. The next prime is 1972966679. The reversal of 1972966627 is 7266692791.

It is a weak prime.

It is an emirp because it is prime and its reverse (7266692791) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1972966627 is a prime.

It is a super-2 number, since 2×1972966627² = 7785194622511514258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1972966727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 986483313 + 986483314.

It is an arithmetic number, because the mean of its divisors is an integer number (986483314).

Almost surely, 2^1972966627 is an apocalyptic number.

1972966627 is a deficient number, since it is larger than the sum of its proper divisors (1).

1972966627 is an equidigital number, since it uses as much as digits as its factorization.

1972966627 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3429216, while the sum is 55.

The square root of 1972966627 is about 44418.0889615931. The cubic root of 1972966627 is about 1254.2186269593.

The spelling of 1972966627 in words is "one billion, nine hundred seventy-two million, nine hundred sixty-six thousand, six hundred twenty-seven".