1001967 has 4 divisors (see below), whose sum is σ = 1335960. Its totient is φ = 667976.

The previous prime is 1001953. The next prime is 1001977. The reversal of 1001967 is 7691001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7691001 = 3 ⋅2563667.

It is a cyclic number.

It is not a de Polignac number, because 1001967 - 2⁷ = 1001839 is a prime.

It is a D-number.

1001967 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001947) 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, 166992 + ... + 166997.

It is an arithmetic number, because the mean of its divisors is an integer number (333990).

2^1001967 is an apocalyptic number.

1001967 is a deficient number, since it is larger than the sum of its proper divisors (333993).

1001967 is an equidigital number, since it uses as much as digits as its factorization.

1001967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333992.

The product of its (nonzero) digits is 378, while the sum is 24.

The square root of 1001967 is about 1000.9830168389. The cubic root of 1001967 is about 100.0655237237.

Adding to 1001967 its reverse (7691001), we get a palindrome (8692968).

The spelling of 1001967 in words is "one million, one thousand, nine hundred sixty-seven".