1936089979 has 2 divisors, whose sum is σ = 1936089980. Its totient is φ = 1936089978.

The previous prime is 1936089977. The next prime is 1936089989. The reversal of 1936089979 is 9799806391.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1936089979 - 2¹ = 1936089977 is a prime.

Together with 1936089977, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1936089971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 968044989 + 968044990.

It is an arithmetic number, because the mean of its divisors is an integer number (968044990).

Almost surely, 2^1936089979 is an apocalyptic number.

1936089979 is a deficient number, since it is larger than the sum of its proper divisors (1).

1936089979 is an equidigital number, since it uses as much as digits as its factorization.

1936089979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6613488, while the sum is 61.

The square root of 1936089979 is about 44001.0224767562. The cubic root of 1936089979 is about 1246.3552451253.

The spelling of 1936089979 in words is "one billion, nine hundred thirty-six million, eighty-nine thousand, nine hundred seventy-nine".