1606833993 has 16 divisors (see below), whose sum is σ = 2197069056. Its totient is φ = 1043967360.

The previous prime is 1606833967. The next prime is 1606834007. The reversal of 1606833993 is 3993386061.

It is a happy number.

It is not a de Polignac number, because 1606833993 - 2⁵ = 1606833961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1606833953) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 116080 + ... + 129182.

It is an arithmetic number, because the mean of its divisors is an integer number (137316816).

Almost surely, 2^1606833993 is an apocalyptic number.

It is an amenable number.

1606833993 is a deficient number, since it is larger than the sum of its proper divisors (590235063).

1606833993 is a wasteful number, since it uses less digits than its factorization.

1606833993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14144.

The product of its (nonzero) digits is 629856, while the sum is 48.

The square root of 1606833993 is about 40085.3338890922. Note that the first 3 decimals coincide. The cubic root of 1606833993 is about 1171.2699564276.

The spelling of 1606833993 in words is "one billion, six hundred six million, eight hundred thirty-three thousand, nine hundred ninety-three".