1012867 has 4 divisors (see below), whose sum is σ = 1017520. Its totient is φ = 1008216.

The previous prime is 1012861. The next prime is 1012903. The reversal of 1012867 is 7682101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7682101 = 7 ⋅1097443.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1012867 is a prime.

It is a Duffinian number.

1012867 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1012861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1983 + ... + 2440.

It is an arithmetic number, because the mean of its divisors is an integer number (254380).

2^1012867 is an apocalyptic number.

1012867 is a deficient number, since it is larger than the sum of its proper divisors (4653).

1012867 is an equidigital number, since it uses as much as digits as its factorization.

1012867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4652.

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 1012867 is about 1006.4129371188. The cubic root of 1012867 is about 100.4270734859.

Adding to 1012867 its reverse (7682101), we get a palindrome (8694968).

The spelling of 1012867 in words is "one million, twelve thousand, eight hundred sixty-seven".