1087749263 has 8 divisors (see below), whose sum is σ = 1108764288. Its totient is φ = 1066752544.

The previous prime is 1087749203. The next prime is 1087749287. The reversal of 1087749263 is 3629477801.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1087749263 - 2¹⁰ = 1087748239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1087749203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 216245 + ... + 221217.

It is an arithmetic number, because the mean of its divisors is an integer number (138595536).

Almost surely, 2^1087749263 is an apocalyptic number.

1087749263 is a deficient number, since it is larger than the sum of its proper divisors (21015025).

1087749263 is an equidigital number, since it uses as much as digits as its factorization.

1087749263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9153.

The product of its (nonzero) digits is 508032, while the sum is 47.

The square root of 1087749263 is about 32981.0439949981. The cubic root of 1087749263 is about 1028.4336209490.

The spelling of 1087749263 in words is "one billion, eighty-seven million, seven hundred forty-nine thousand, two hundred sixty-three".