1982214979 has 2 divisors, whose sum is σ = 1982214980. Its totient is φ = 1982214978.

The previous prime is 1982214973. The next prime is 1982215061. The reversal of 1982214979 is 9794122891.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1982214979 - 2⁷ = 1982214851 is a prime.

It is not a weakly prime, because it can be changed into another prime (1982214973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 991107489 + 991107490.

It is an arithmetic number, because the mean of its divisors is an integer number (991107490).

Almost surely, 2^1982214979 is an apocalyptic number.

1982214979 is a deficient number, since it is larger than the sum of its proper divisors (1).

1982214979 is an equidigital number, since it uses as much as digits as its factorization.

1982214979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 653184, while the sum is 52.

The square root of 1982214979 is about 44522.0729414074. The cubic root of 1982214979 is about 1256.1753044405.

The spelling of 1982214979 in words is "one billion, nine hundred eighty-two million, two hundred fourteen thousand, nine hundred seventy-nine".