1072289 has 4 divisors (see below), whose sum is σ = 1074480. Its totient is φ = 1070100.

The previous prime is 1072231. The next prime is 1072301. The reversal of 1072289 is 9822701.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1072289 is a prime.

It is a super-2 number, since 2×1072289² = 2299607399042, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1072219) 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, 14 + ... + 1464.

It is an arithmetic number, because the mean of its divisors is an integer number (268620).

2^1072289 is an apocalyptic number.

It is an amenable number.

1072289 is a deficient number, since it is larger than the sum of its proper divisors (2191).

1072289 is an equidigital number, since it uses as much as digits as its factorization.

1072289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2190.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 1072289 is about 1035.5138820895. The cubic root of 1072289 is about 102.3537951234.

The spelling of 1072289 in words is "one million, seventy-two thousand, two hundred eighty-nine".