1105780986 has 24 divisors (see below), whose sum is σ = 2398024980. Its totient is φ = 368260416.

The previous prime is 1105780979. The next prime is 1105780993. The reversal of 1105780986 is 6890875011.

It is an interprime number because it is at equal distance from previous prime (1105780979) and next prime (1105780993).

It can be written as a sum of positive squares in 2 ways, for example, as 1055015361 + 50765625 = 32481^2 + 7125^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6885 + ... + 47528.

Almost surely, 2^1105780986 is an apocalyptic number.

1105780986 is an abundant number, since it is smaller than the sum of its proper divisors (1292243994).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1105780986 is a wasteful number, since it uses less digits than its factorization.

1105780986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55550 (or 55547 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 45.

The square root of 1105780986 is about 33253.2853414516. The cubic root of 1105780986 is about 1034.0853194541.

The spelling of 1105780986 in words is "one billion, one hundred five million, seven hundred eighty thousand, nine hundred eighty-six".