1087947456 has 28 divisors (see below), whose sum is σ = 2878528152. Its totient is φ = 362649088.

The previous prime is 1087947451. The next prime is 1087947461. The reversal of 1087947456 is 6547497801.

It is an interprime number because it is at equal distance from previous prime (1087947451) and next prime (1087947461).

It is a junction number, because it is equal to n+sod(n) for n = 1087947399 and 1087947408.

It is not an unprimeable number, because it can be changed into a prime (1087947451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2833005 + ... + 2833388.

Almost surely, 2^1087947456 is an apocalyptic number.

1087947456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1087947456 is an abundant number, since it is smaller than the sum of its proper divisors (1790580696).

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

1087947456 is an equidigital number, since it uses as much as digits as its factorization.

1087947456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5666408 (or 5666398 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 51.

The square root of 1087947456 is about 32984.0485083320. The cubic root of 1087947456 is about 1028.4960789600.

The spelling of 1087947456 in words is "one billion, eighty-seven million, nine hundred forty-seven thousand, four hundred fifty-six".