1087428 has 12 divisors (see below), whose sum is σ = 2537360. Its totient is φ = 362472.

The previous prime is 1087423. The next prime is 1087433. The reversal of 1087428 is 8247801.

It is an interprime number because it is at equal distance from previous prime (1087423) and next prime (1087433).

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1087395 and 1087404.

It is not an unprimeable number, because it can be changed into a prime (1087423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45298 + ... + 45321.

2^1087428 is an apocalyptic number.

It is an amenable number.

1087428 is an abundant number, since it is smaller than the sum of its proper divisors (1449932).

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

1087428 is a wasteful number, since it uses less digits than its factorization.

1087428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90626 (or 90624 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 30.

The square root of 1087428 is about 1042.7981588016. The cubic root of 1087428 is about 102.8332362870.

The spelling of 1087428 in words is "one million, eighty-seven thousand, four hundred twenty-eight".