1026039 has 8 divisors (see below), whose sum is σ = 1563520. Its totient is φ = 586296.

The previous prime is 1026037. The next prime is 1026041. The reversal of 1026039 is 9306201.

It is an interprime number because it is at equal distance from previous prime (1026037) and next prime (1026041).

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

It is not a de Polignac number, because 1026039 - 2¹ = 1026037 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 48859 = 1026039 / (1 + 0 + 2 + 6 + 0 + 3 + 9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1026031) 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, 24409 + ... + 24450.

It is an arithmetic number, because the mean of its divisors is an integer number (195440).

2^1026039 is an apocalyptic number.

1026039 is a deficient number, since it is larger than the sum of its proper divisors (537481).

1026039 is an equidigital number, since it uses as much as digits as its factorization.

1026039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48869.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 1026039 is about 1012.9358321236. The cubic root of 1026039 is about 100.8605401316.

The spelling of 1026039 in words is "one million, twenty-six thousand, thirty-nine".