1085787423 has 60 divisors (see below), whose sum is σ = 1898428168. Its totient is φ = 620116560.

The previous prime is 1085787419. The next prime is 1085787481. The reversal of 1085787423 is 3247875801.

1085787423 is a `hidden beast` number, since 1 + 0 + 8 + 578 + 74 + 2 + 3 = 666.

It is not a de Polignac number, because 1085787423 - 2² = 1085787419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1085787323) 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 59 ways as a sum of consecutive naturals, for example, 582513 + ... + 584373.

Almost surely, 2^1085787423 is an apocalyptic number.

1085787423 is a deficient number, since it is larger than the sum of its proper divisors (812640745).

1085787423 is an frugal number, since it uses more digits than its factorization.

1085787423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1904 (or 1871 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 45.

The square root of 1085787423 is about 32951.2886394447. The cubic root of 1085787423 is about 1027.8149623176.

The spelling of 1085787423 in words is "one billion, eighty-five million, seven hundred eighty-seven thousand, four hundred twenty-three".