1606939698 has 32 divisors (see below), whose sum is σ = 3955545216. Its totient is φ = 423808128.

The previous prime is 1606939681. The next prime is 1606939699. The reversal of 1606939698 is 8969396061.

It is not an unprimeable number, because it can be changed into a prime (1606939699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1471011 + ... + 1472102.

It is an arithmetic number, because the mean of its divisors is an integer number (123610788).

Almost surely, 2^1606939698 is an apocalyptic number.

1606939698 is an abundant number, since it is smaller than the sum of its proper divisors (2348605518).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1606939698 is a wasteful number, since it uses less digits than its factorization.

1606939698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2943138.

The product of its (nonzero) digits is 3779136, while the sum is 57.

The square root of 1606939698 is about 40086.6523670910. The cubic root of 1606939698 is about 1171.2956397229.

The spelling of 1606939698 in words is "one billion, six hundred six million, nine hundred thirty-nine thousand, six hundred ninety-eight".