1002667 has 4 divisors (see below), whose sum is σ = 1005480. Its totient is φ = 999856.

The previous prime is 1002653. The next prime is 1002679. The reversal of 1002667 is 7662001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1002667 - 2¹¹ = 1000619 is a prime.

It is a super-2 number, since 2×1002667² = 2010682225778, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1002647) 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, 778 + ... + 1615.

It is an arithmetic number, because the mean of its divisors is an integer number (251370).

2^1002667 is an apocalyptic number.

1002667 is a deficient number, since it is larger than the sum of its proper divisors (2813).

1002667 is an equidigital number, since it uses as much as digits as its factorization.

1002667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2812.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 1002667 is about 1001.3326120725. The cubic root of 1002667 is about 100.0888210848.

Adding to 1002667 its reverse (7662001), we get a palindrome (8664668).

The spelling of 1002667 in words is "one million, two thousand, six hundred sixty-seven".