1670412 has 12 divisors (see below), whose sum is σ = 3897656. Its totient is φ = 556800.

The previous prime is 1670411. The next prime is 1670413. The reversal of 1670412 is 2140761.

It is an interprime number because it is at equal distance from previous prime (1670411) and next prime (1670413).

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (21) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1670411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69589 + ... + 69612.

2^1670412 is an apocalyptic number.

1670412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1670412 is an abundant number, since it is smaller than the sum of its proper divisors (2227244).

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

1670412 is a wasteful number, since it uses less digits than its factorization.

1670412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139208 (or 139206 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 1670412 is about 1292.4441960874. Note that the first 3 decimals coincide. The cubic root of 1670412 is about 118.6518553804.

The spelling of 1670412 in words is "one million, six hundred seventy thousand, four hundred twelve".