919382669 has 2 divisors, whose sum is σ = 919382670. Its totient is φ = 919382668.

The previous prime is 919382641. The next prime is 919382671. The reversal of 919382669 is 966283919.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 585882025 + 333500644 = 24205^2 + 18262^2 .

It is a cyclic number.

It is not a de Polignac number, because 919382669 - 2¹² = 919378573 is a prime.

It is a super-2 number, since 2×919382669² = 1690528984115127122, which contains 22 as substring.

Together with 919382671, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 919382669.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (919382609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 459691334 + 459691335.

It is an arithmetic number, because the mean of its divisors is an integer number (459691335).

Almost surely, 2^919382669 is an apocalyptic number.

It is an amenable number.

919382669 is a deficient number, since it is larger than the sum of its proper divisors (1).

919382669 is an equidigital number, since it uses as much as digits as its factorization.

919382669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1259712, while the sum is 53.

The square root of 919382669 is about 30321.3236683361. The cubic root of 919382669 is about 972.3712379664.

The spelling of 919382669 in words is "nine hundred nineteen million, three hundred eighty-two thousand, six hundred sixty-nine".