1093977919 has 2 divisors, whose sum is σ = 1093977920. Its totient is φ = 1093977918.

The previous prime is 1093977917. The next prime is 1093977947. The reversal of 1093977919 is 9197793901.

It is a weak prime.

It is an emirp because it is prime and its reverse (9197793901) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1093977919 - 2¹ = 1093977917 is a prime.

It is a super-2 number, since 2×1093977919² = 2393575374519141122, which contains 22 as substring.

Together with 1093977917, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1093977919.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1093977917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 546988959 + 546988960.

It is an arithmetic number, because the mean of its divisors is an integer number (546988960).

Almost surely, 2^1093977919 is an apocalyptic number.

1093977919 is a deficient number, since it is larger than the sum of its proper divisors (1).

1093977919 is an equidigital number, since it uses as much as digits as its factorization.

1093977919 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 964467, while the sum is 55.

The square root of 1093977919 is about 33075.3370202028. The cubic root of 1093977919 is about 1030.3928871606.

The spelling of 1093977919 in words is "one billion, ninety-three million, nine hundred seventy-seven thousand, nine hundred nineteen".