18789696 has 42 divisors (see below), whose sum is σ = 53858922. Its totient is φ = 6263040.

The previous prime is 18789677. The next prime is 18789697. The reversal of 18789696 is 69698781.

It can be written as a sum of positive squares in only one way, i.e., 16646400 + 2143296 = 4080^2 + 1464^2 .

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18789697) 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 in 5 ways as a sum of consecutive naturals, for example, 15735 + ... + 16886.

Almost surely, 2^18789696 is an apocalyptic number.

18789696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

18789696 is an abundant number, since it is smaller than the sum of its proper divisors (35069226).

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

18789696 is a wasteful number, since it uses less digits than its factorization.

18789696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32639 (or 32626 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 54.

The square root of 18789696 is about 4334.7082946837. The cubic root of 18789696 is about 265.8519914534.

The spelling of 18789696 in words is "eighteen million, seven hundred eighty-nine thousand, six hundred ninety-six".