1052689 has 8 divisors (see below), whose sum is σ = 1163232. Its totient is φ = 944640.

The previous prime is 1052663. The next prime is 1052693. The reversal of 1052689 is 9862501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1052689 - 2⁷ = 1052561 is a prime.

It is a super-2 number, since 2×1052689² = 2216308261442, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1052689.

It is not an unprimeable number, because it can be changed into a prime (1052609) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 337 + ... + 1489.

It is an arithmetic number, because the mean of its divisors is an integer number (145404).

2^1052689 is an apocalyptic number.

It is an amenable number.

1052689 is a deficient number, since it is larger than the sum of its proper divisors (110543).

1052689 is a wasteful number, since it uses less digits than its factorization.

1052689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1247.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 1052689 is about 1026.0063352631. The cubic root of 1052689 is about 101.7263264755.

The spelling of 1052689 in words is "one million, fifty-two thousand, six hundred eighty-nine".