1287084760 has 32 divisors (see below), whose sum is σ = 3118706640. Its totient is φ = 475231104.

The previous prime is 1287084737. The next prime is 1287084763. The reversal of 1287084760 is 674807821.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1287084763) 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, 1237062 + ... + 1238101.

Almost surely, 2^1287084760 is an apocalyptic number.

1287084760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1287084760 is an abundant number, since it is smaller than the sum of its proper divisors (1831621880).

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

1287084760 is a wasteful number, since it uses less digits than its factorization.

1287084760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2475187 (or 2475183 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 43.

The square root of 1287084760 is about 35875.9635410674. The cubic root of 1287084760 is about 1087.7665909157.

The spelling of 1287084760 in words is "one billion, two hundred eighty-seven million, eighty-four thousand, seven hundred sixty".