1123394686 has 16 divisors (see below), whose sum is σ = 1693313424. Its totient is φ = 558964224.

The previous prime is 1123394677. The next prime is 1123394687. The reversal of 1123394686 is 6864933211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123394687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 406686 + ... + 409438.

It is an arithmetic number, because the mean of its divisors is an integer number (105832089).

Almost surely, 2^1123394686 is an apocalyptic number.

1123394686 is a deficient number, since it is larger than the sum of its proper divisors (569918738).

1123394686 is a wasteful number, since it uses less digits than its factorization.

1123394686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3675.

The product of its digits is 186624, while the sum is 43.

The square root of 1123394686 is about 33517.0805112856. The cubic root of 1123394686 is about 1039.5469815671.

The spelling of 1123394686 in words is "one billion, one hundred twenty-three million, three hundred ninety-four thousand, six hundred eighty-six".