1671047 has 12 divisors (see below), whose sum is σ = 1976760. Its totient is φ = 1408176.

The previous prime is 1671041. The next prime is 1671053. The reversal of 1671047 is 7401761.

It is an interprime number because it is at equal distance from previous prime (1671041) and next prime (1671053).

It is not a de Polignac number, because 1671047 - 2⁶ = 1670983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1671041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3029 + ... + 3537.

It is an arithmetic number, because the mean of its divisors is an integer number (164730).

2^1671047 is an apocalyptic number.

1671047 is a deficient number, since it is larger than the sum of its proper divisors (305713).

1671047 is an equidigital number, since it uses as much as digits as its factorization.

1671047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 590 (or 583 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 26.

The square root of 1671047 is about 1292.6898313207. The cubic root of 1671047 is about 118.6668884747. Note that the first 3 decimals are identical.

The spelling of 1671047 in words is "one million, six hundred seventy-one thousand, forty-seven".