1606979 has 8 divisors (see below), whose sum is σ = 1767360. Its totient is φ = 1449000.

The previous prime is 1606967. The next prime is 1606981. The reversal of 1606979 is 9796061.

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 1606979 - 2⁸ = 1606723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1606909) 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, 1004 + ... + 2054.

It is an arithmetic number, because the mean of its divisors is an integer number (220920).

2^1606979 is an apocalyptic number.

1606979 is a deficient number, since it is larger than the sum of its proper divisors (160381).

1606979 is a wasteful number, since it uses less digits than its factorization.

1606979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1201.

The product of its (nonzero) digits is 20412, while the sum is 38.

The square root of 1606979 is about 1267.6667543168. Note that the first 3 decimals coincide. The cubic root of 1606979 is about 117.1305188699.

The spelling of 1606979 in words is "one million, six hundred six thousand, nine hundred seventy-nine".