1087929 has 12 divisors (see below), whose sum is σ = 1587300. Its totient is φ = 717984.

The previous prime is 1087907. The next prime is 1087937. The reversal of 1087929 is 9297801.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 304704 + 783225 = 552^2 + 885^2 .

It is not a de Polignac number, because 1087929 - 2⁵ = 1087897 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1087893 and 1087902.

It is not an unprimeable number, because it can be changed into a prime (1087129) 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, 427 + ... + 1535.

It is an arithmetic number, because the mean of its divisors is an integer number (132275).

2^1087929 is an apocalyptic number.

It is an amenable number.

1087929 is a deficient number, since it is larger than the sum of its proper divisors (499371).

1087929 is a wasteful number, since it uses less digits than its factorization.

1087929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1224 (or 1221 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 36.

The square root of 1087929 is about 1043.0383502058. The cubic root of 1087929 is about 102.8490263106.

It can be divided in two parts, 108792 and 9, that added together give a palindrome (108801).

The spelling of 1087929 in words is "one million, eighty-seven thousand, nine hundred twenty-nine".