1990714277 has 2 divisors, whose sum is σ = 1990714278. Its totient is φ = 1990714276.

The previous prime is 1990714267. The next prime is 1990714357. The reversal of 1990714277 is 7724170991.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1770221476 + 220492801 = 42074^2 + 14849^2 .

It is an emirp because it is prime and its reverse (7724170991) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1990714277 - 2⁴ = 1990714261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1990714207) 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, 995357138 + 995357139.

It is an arithmetic number, because the mean of its divisors is an integer number (995357139).

Almost surely, 2^1990714277 is an apocalyptic number.

It is an amenable number.

1990714277 is a deficient number, since it is larger than the sum of its proper divisors (1).

1990714277 is an equidigital number, since it uses as much as digits as its factorization.

1990714277 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 222264, while the sum is 47.

The square root of 1990714277 is about 44617.4212275878. The cubic root of 1990714277 is about 1257.9681447681.

It can be divided in two parts, 1990714 and 277, that added together give a palindrome (1990991).

The spelling of 1990714277 in words is "one billion, nine hundred ninety million, seven hundred fourteen thousand, two hundred seventy-seven".