1026387 has 6 divisors (see below), whose sum is σ = 1482572. Its totient is φ = 684252.

The previous prime is 1026383. The next prime is 1026391. The reversal of 1026387 is 7836201.

It is an interprime number because it is at equal distance from previous prime (1026383) and next prime (1026391).

It is not a de Polignac number, because 1026387 - 2² = 1026383 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 1026387.

It is not an unprimeable number, because it can be changed into a prime (1026383) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 57013 + ... + 57030.

2^1026387 is an apocalyptic number.

1026387 is a deficient number, since it is larger than the sum of its proper divisors (456185).

1026387 is a wasteful number, since it uses less digits than its factorization.

1026387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114049 (or 114046 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 1026387 is about 1013.1075954705. The cubic root of 1026387 is about 100.8719417452.

The spelling of 1026387 in words is "one million, twenty-six thousand, three hundred eighty-seven".