1606958 has 4 divisors (see below), whose sum is σ = 2410440. Its totient is φ = 803478.

The previous prime is 1606951. The next prime is 1606967. The reversal of 1606958 is 8596061.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8596061 = 83 ⋅103567.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1606951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 401738 + ... + 401741.

It is an arithmetic number, because the mean of its divisors is an integer number (602610).

2^1606958 is an apocalyptic number.

1606958 is a deficient number, since it is larger than the sum of its proper divisors (803482).

1606958 is an equidigital number, since it uses as much as digits as its factorization.

1606958 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 803481.

The product of its (nonzero) digits is 12960, while the sum is 35.

The square root of 1606958 is about 1267.6584713558. The cubic root of 1606958 is about 117.1300086472.

The spelling of 1606958 in words is "one million, six hundred six thousand, nine hundred fifty-eight".