1641067 has 4 divisors (see below), whose sum is σ = 1661920. Its totient is φ = 1620216.

The previous prime is 1641053. The next prime is 1641077. The reversal of 1641067 is 7601461.

It is a happy number.

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 1641067 - 2⁷ = 1640939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1641007) 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, 10308 + ... + 10465.

It is an arithmetic number, because the mean of its divisors is an integer number (415480).

2^1641067 is an apocalyptic number.

1641067 is a deficient number, since it is larger than the sum of its proper divisors (20853).

1641067 is an equidigital number, since it uses as much as digits as its factorization.

1641067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20852.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 1641067 is about 1281.0413732585. The cubic root of 1641067 is about 117.9529401543.

The spelling of 1641067 in words is "one million, six hundred forty-one thousand, sixty-seven".