16939594 has 12 divisors (see below), whose sum is σ = 29558034. Its totient is φ = 7259784.

The previous prime is 16939591. The next prime is 16939613. The reversal of 16939594 is 49593961.

It can be written as a sum of positive squares in only one way, i.e., 16769025 + 170569 = 4095^2 + 413^2 .

It is not an unprimeable number, because it can be changed into a prime (16939591) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 86329 + ... + 86524.

Almost surely, 2^16939594 is an apocalyptic number.

16939594 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

16939594 is a deficient number, since it is larger than the sum of its proper divisors (12618440).

16939594 is a wasteful number, since it uses less digits than its factorization.

16939594 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172869 (or 172862 counting only the distinct ones).

The product of its digits is 262440, while the sum is 46.

The square root of 16939594 is about 4115.7738033084. The cubic root of 16939594 is about 256.8232469743.

The spelling of 16939594 in words is "sixteen million, nine hundred thirty-nine thousand, five hundred ninety-four".