18699364 has 6 divisors (see below), whose sum is σ = 32723894. Its totient is φ = 9349680.

The previous prime is 18699361. The next prime is 18699377. The reversal of 18699364 is 46399681.

It can be written as a sum of positive squares in only one way, i.e., 16321600 + 2377764 = 4040^2 + 1542^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18699361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2337417 + ... + 2337424.

Almost surely, 2^18699364 is an apocalyptic number.

It is an amenable number.

18699364 is a deficient number, since it is larger than the sum of its proper divisors (14024530).

18699364 is a wasteful number, since it uses less digits than its factorization.

18699364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4674845 (or 4674843 counting only the distinct ones).

The product of its digits is 279936, while the sum is 46.

The square root of 18699364 is about 4324.2761243935. The cubic root of 18699364 is about 265.4252765599.

The spelling of 18699364 in words is "eighteen million, six hundred ninety-nine thousand, three hundred sixty-four".