1088649 has 12 divisors (see below), whose sum is σ = 1594996. Its totient is φ = 715392.

The previous prime is 1088641. The next prime is 1088657. The reversal of 1088649 is 9468801.

It is a happy number.

1088649 is a `hidden beast` number, since 1 + 0 + 8 + 8 + 649 = 666.

It is an interprime number because it is at equal distance from previous prime (1088641) and next prime (1088657).

It can be written as a sum of positive squares in 2 ways, for example, as 480249 + 608400 = 693^2 + 780^2 .

It is not a de Polignac number, because 1088649 - 2³ = 1088641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1088641) 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, 172 + ... + 1485.

2^1088649 is an apocalyptic number.

It is an amenable number.

1088649 is a deficient number, since it is larger than the sum of its proper divisors (506347).

1088649 is a wasteful number, since it uses less digits than its factorization.

1088649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1736 (or 1733 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 1088649 is about 1043.3834386265. The cubic root of 1088649 is about 102.8717100731.

The spelling of 1088649 in words is "one million, eighty-eight thousand, six hundred forty-nine".