1087273776 has 80 divisors (see below), whose sum is σ = 2851005024. Its totient is φ = 357015552.

The previous prime is 1087273769. The next prime is 1087273807. The reversal of 1087273776 is 6773727801.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1363810 + ... + 1364606.

Almost surely, 2^1087273776 is an apocalyptic number.

1087273776 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1087273776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1425502512).

1087273776 is an abundant number, since it is smaller than the sum of its proper divisors (1763731248).

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

1087273776 is a wasteful number, since it uses less digits than its factorization.

1087273776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1198 (or 1192 counting only the distinct ones).

The product of its (nonzero) digits is 691488, while the sum is 48.

The square root of 1087273776 is about 32973.8347178486. The cubic root of 1087273776 is about 1028.2837463090.

It can be divided in two parts, 10872 and 73776, that added together give a palindrome (84648).

The spelling of 1087273776 in words is "one billion, eighty-seven million, two hundred seventy-three thousand, seven hundred seventy-six".