1089279 has 12 divisors (see below), whose sum is σ = 1587456. Its totient is φ = 719712.

The previous prime is 1089259. The next prime is 1089299. The reversal of 1089279 is 9729801.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1089259) and next prime (1089299).

It is not a de Polignac number, because 1089279 - 2¹¹ = 1087231 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1089239) 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, 667 + ... + 1619.

It is an arithmetic number, because the mean of its divisors is an integer number (132288).

2^1089279 is an apocalyptic number.

1089279 is a deficient number, since it is larger than the sum of its proper divisors (498177).

1089279 is a wasteful number, since it uses less digits than its factorization.

1089279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1086 (or 1083 counting only the distinct ones).

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

The square root of 1089279 is about 1043.6852973957. The cubic root of 1089279 is about 102.8915501622.

The spelling of 1089279 in words is "one million, eighty-nine thousand, two hundred seventy-nine".