1078492369 has 2 divisors, whose sum is σ = 1078492370. Its totient is φ = 1078492368.

The previous prime is 1078492361. The next prime is 1078492411. The reversal of 1078492369 is 9632948701.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 929945025 + 148547344 = 30495^2 + 12188^2 .

It is an emirp because it is prime and its reverse (9632948701) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1078492369 - 2³ = 1078492361 is a prime.

It is a super-3 number, since 3×1078492369³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (1078492361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 539246184 + 539246185.

It is an arithmetic number, because the mean of its divisors is an integer number (539246185).

Almost surely, 2^1078492369 is an apocalyptic number.

It is an amenable number.

1078492369 is a deficient number, since it is larger than the sum of its proper divisors (1).

1078492369 is an equidigital number, since it uses as much as digits as its factorization.

1078492369 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 653184, while the sum is 49.

The square root of 1078492369 is about 32840.4075644624. The cubic root of 1078492369 is about 1025.5079359183.

The spelling of 1078492369 in words is "one billion, seventy-eight million, four hundred ninety-two thousand, three hundred sixty-nine".