1087697408 has 80 divisors (see below), whose sum is σ = 2614624320. Its totient is φ = 441593856.

The previous prime is 1087697371. The next prime is 1087697411. The reversal of 1087697408 is 8047967801.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60110 + ... + 76082.

It is an arithmetic number, because the mean of its divisors is an integer number (32682804).

Almost surely, 2^1087697408 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1087697408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1307312160).

1087697408 is an abundant number, since it is smaller than the sum of its proper divisors (1526926912).

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

1087697408 is an equidigital number, since it uses as much as digits as its factorization.

1087697408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16017 (or 16001 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 50.

The square root of 1087697408 is about 32980.2578522364. The cubic root of 1087697408 is about 1028.4172782510.

The spelling of 1087697408 in words is "one billion, eighty-seven million, six hundred ninety-seven thousand, four hundred eight".