1670913 has 24 divisors (see below), whose sum is σ = 2609568. Its totient is φ = 1026432.

The previous prime is 1670899. The next prime is 1670923. The reversal of 1670913 is 3190761.

It is not a de Polignac number, because 1670913 - 2⁸ = 1670657 is a prime.

It is an Ulam number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1670923) 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 23 ways as a sum of consecutive naturals, for example, 10170 + ... + 10332.

It is an arithmetic number, because the mean of its divisors is an integer number (108732).

2^1670913 is an apocalyptic number.

It is an amenable number.

1670913 is a deficient number, since it is larger than the sum of its proper divisors (938655).

1670913 is a wasteful number, since it uses less digits than its factorization.

1670913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253 (or 250 counting only the distinct ones).

The product of its (nonzero) digits is 1134, while the sum is 27.

The square root of 1670913 is about 1292.6380003698. The cubic root of 1670913 is about 118.6637164537.

The spelling of 1670913 in words is "one million, six hundred seventy thousand, nine hundred thirteen".