1684413 has 12 divisors (see below), whose sum is σ = 2447328. Its totient is φ = 1116360.

The previous prime is 1684409. The next prime is 1684427. The reversal of 1684413 is 3144861.

It is not a de Polignac number, because 1684413 - 2² = 1684409 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1682413) 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, 1456 + ... + 2342.

It is an arithmetic number, because the mean of its divisors is an integer number (203944).

2^1684413 is an apocalyptic number.

It is an amenable number.

1684413 is a deficient number, since it is larger than the sum of its proper divisors (762915).

1684413 is a wasteful number, since it uses less digits than its factorization.

1684413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1104 (or 1101 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 1684413 is about 1297.8493749276. The cubic root of 1684413 is about 118.9824374430.

The spelling of 1684413 in words is "one million, six hundred eighty-four thousand, four hundred thirteen".