1670004 has 72 divisors (see below), whose sum is σ = 5055680. Its totient is φ = 466992.

The previous prime is 1670003. The next prime is 1670017. The reversal of 1670004 is 4000761.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nialpdrome in base 6.

It is a zygodrome in base 6.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1670003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35509 + ... + 35555.

2^1670004 is an apocalyptic number.

1670004 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1670004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2527840).

1670004 is an abundant number, since it is smaller than the sum of its proper divisors (3385676).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1670004 is a wasteful number, since it uses less digits than its factorization.

1670004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114 (or 59 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 1670004 is about 1292.2863459775. The cubic root of 1670004 is about 118.6421943110.

Adding to 1670004 its reverse (4000761), we get a palindrome (5670765).

The spelling of 1670004 in words is "one million, six hundred seventy thousand, four".