1987096456 has 32 divisors (see below), whose sum is σ = 4005360000. Its totient is φ = 921226176.

The previous prime is 1987096453. The next prime is 1987096481. The reversal of 1987096456 is 6546907891.

It is a junction number, because it is equal to n+sod(n) for n = 1987096397 and 1987096406.

It is not an unprimeable number, because it can be changed into a prime (1987096451) 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, 131931 + ... + 146218.

It is an arithmetic number, because the mean of its divisors is an integer number (125167500).

Almost surely, 2^1987096456 is an apocalyptic number.

It is an amenable number.

1987096456 is an abundant number, since it is smaller than the sum of its proper divisors (2018263544).

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

1987096456 is a wasteful number, since it uses less digits than its factorization.

1987096456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278221 (or 278217 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 55.

The square root of 1987096456 is about 44576.8600957941. The cubic root of 1987096456 is about 1257.2056272820.

The spelling of 1987096456 in words is "one billion, nine hundred eighty-seven million, ninety-six thousand, four hundred fifty-six".