1010689 has 4 divisors (see below), whose sum is σ = 1054656. Its totient is φ = 966724.

The previous prime is 1010687. The next prime is 1010717. The reversal of 1010689 is 9860101.

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, and also an emirpimes, since its reverse is a distinct semiprime: 9860101 = 61 ⋅161641.

It is a cyclic number.

It is not a de Polignac number, because 1010689 - 2¹ = 1010687 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1010683) 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, 21949 + ... + 21994.

It is an arithmetic number, because the mean of its divisors is an integer number (263664).

It is a Proth number, since it is equal to 987 ⋅ 2¹⁰ + 1 and 987 < 2¹⁰.

2^1010689 is an apocalyptic number.

It is an amenable number.

1010689 is a deficient number, since it is larger than the sum of its proper divisors (43967).

1010689 is an equidigital number, since it uses as much as digits as its factorization.

1010689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43966.

The product of its (nonzero) digits is 432, while the sum is 25.

The square root of 1010689 is about 1005.3302939830. The cubic root of 1010689 is about 100.3550379885.

The spelling of 1010689 in words is "one million, ten thousand, six hundred eighty-nine".