1670013 has 6 divisors (see below), whose sum is σ = 2412254. Its totient is φ = 1113336.

The previous prime is 1670003. The next prime is 1670017. The reversal of 1670013 is 3100761.

It can be written as a sum of positive squares in only one way, i.e., 1542564 + 127449 = 1242^2 + 357^2 .

It is not a de Polignac number, because 1670013 - 2¹⁸ = 1407869 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 (1670017) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 92770 + ... + 92787.

2^1670013 is an apocalyptic number.

It is an amenable number.

1670013 is a deficient number, since it is larger than the sum of its proper divisors (742241).

1670013 is a wasteful number, since it uses less digits than its factorization.

1670013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185563 (or 185560 counting only the distinct ones).

The product of its (nonzero) digits is 126, while the sum is 18.

The square root of 1670013 is about 1292.2898281732. The cubic root of 1670013 is about 118.6424074398.

Adding to 1670013 its reverse (3100761), we get a palindrome (4770774).

The spelling of 1670013 in words is "one million, six hundred seventy thousand, thirteen".