18970995 has 8 divisors (see below), whose sum is σ = 30353616. Its totient is φ = 10117856.

The previous prime is 18970967. The next prime is 18971003. The reversal of 18970995 is 59907981.

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 18970995 - 2⁷ = 18970867 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 632352 + ... + 632381.

It is an arithmetic number, because the mean of its divisors is an integer number (3794202).

Almost surely, 2^18970995 is an apocalyptic number.

18970995 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

18970995 is a deficient number, since it is larger than the sum of its proper divisors (11382621).

18970995 is a wasteful number, since it uses less digits than its factorization.

18970995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1264741.

The product of its (nonzero) digits is 204120, while the sum is 48.

The square root of 18970995 is about 4355.5705711192. The cubic root of 18970995 is about 266.7043115258.

The spelling of 18970995 in words is "eighteen million, nine hundred seventy thousand, nine hundred ninety-five".