1606393 has 8 divisors (see below), whose sum is σ = 1720800. Its totient is φ = 1495008.

The previous prime is 1606387. The next prime is 1606399. The reversal of 1606393 is 3936061.

It is an interprime number because it is at equal distance from previous prime (1606387) and next prime (1606399).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1606393 - 2⁹ = 1605881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1606399) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 405 + ... + 1837.

It is an arithmetic number, because the mean of its divisors is an integer number (215100).

2^1606393 is an apocalyptic number.

It is an amenable number.

1606393 is a deficient number, since it is larger than the sum of its proper divisors (114407).

1606393 is a wasteful number, since it uses less digits than its factorization.

1606393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1511.

The product of its (nonzero) digits is 2916, while the sum is 28.

The square root of 1606393 is about 1267.4355999419. The cubic root of 1606393 is about 117.1162795573.

The spelling of 1606393 in words is "one million, six hundred six thousand, three hundred ninety-three".