18968995 has 8 divisors (see below), whose sum is σ = 22984416. Its totient is φ = 15027456.

The previous prime is 18968969. The next prime is 18969001. The reversal of 18968995 is 59986981.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18968995 - 2¹⁹ = 18444707 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 17902 + ... + 18931.

It is an arithmetic number, because the mean of its divisors is an integer number (2873052).

Almost surely, 2^18968995 is an apocalyptic number.

18968995 is a deficient number, since it is larger than the sum of its proper divisors (4015421).

18968995 is a wasteful number, since it uses less digits than its factorization.

18968995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36941.

The product of its digits is 1399680, while the sum is 55.

The square root of 18968995 is about 4355.3409740226. The cubic root of 18968995 is about 266.6949388427.

The spelling of 18968995 in words is "eighteen million, nine hundred sixty-eight thousand, nine hundred ninety-five".