1087915 has 8 divisors (see below), whose sum is σ = 1382400. Its totient is φ = 819072.

The previous prime is 1087907. The next prime is 1087937. The reversal of 1087915 is 5197801.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1087915 - 2³ = 1087907 is a prime.

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, 6315 + ... + 6484.

It is an arithmetic number, because the mean of its divisors is an integer number (172800).

2^1087915 is an apocalyptic number.

1087915 is a deficient number, since it is larger than the sum of its proper divisors (294485).

1087915 is a wasteful number, since it uses less digits than its factorization.

1087915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12821.

The product of its (nonzero) digits is 2520, while the sum is 31.

The square root of 1087915 is about 1043.0316390216. The cubic root of 1087915 is about 102.8485851383.

It can be divided in two parts, 1087 and 915, that added together give a palindrome (2002).

The spelling of 1087915 in words is "one million, eighty-seven thousand, nine hundred fifteen".