1087823646 has 48 divisors (see below), whose sum is σ = 2900867424. Its totient is φ = 286898112.

The previous prime is 1087823609. The next prime is 1087823657. The reversal of 1087823646 is 6463287801.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 330421 + ... + 333696.

It is an arithmetic number, because the mean of its divisors is an integer number (60434738).

Almost surely, 2^1087823646 is an apocalyptic number.

1087823646 is an abundant number, since it is smaller than the sum of its proper divisors (1813043778).

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

1087823646 is a wasteful number, since it uses less digits than its factorization.

1087823646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 664145 (or 664142 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The square root of 1087823646 is about 32982.1716386293. The cubic root of 1087823646 is about 1028.4570626976.

The spelling of 1087823646 in words is "one billion, eighty-seven million, eight hundred twenty-three thousand, six hundred forty-six".