1087907616 has 72 divisors (see below), whose sum is σ = 3096999360. Its totient is φ = 362253696.

The previous prime is 1087907603. The next prime is 1087907617. The reversal of 1087907616 is 6167097801.

It is a tau number, because it is divible by the number of its divisors (72).

It is not an unprimeable number, because it can be changed into a prime (1087907617) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 447781 + ... + 450203.

It is an arithmetic number, because the mean of its divisors is an integer number (43013880).

Almost surely, 2^1087907616 is an apocalyptic number.

1087907616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1087907616 is an abundant number, since it is smaller than the sum of its proper divisors (2009091744).

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

1087907616 is a wasteful number, since it uses less digits than its factorization.

1087907616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3998 (or 3987 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 45.

The square root of 1087907616 is about 32983.4445745134. Note that the first 3 decimals coincide. The cubic root of 1087907616 is about 1028.4835244983.

The spelling of 1087907616 in words is "one billion, eighty-seven million, nine hundred seven thousand, six hundred sixteen".