20084995 has 16 divisors (see below), whose sum is σ = 28995840. Its totient is φ = 13047264.

The previous prime is 20084989. The next prime is 20085017. The reversal of 20084995 is 59948002.

It is a cyclic number.

It is not a de Polignac number, because 20084995 - 2¹³ = 20076803 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 14437 + ... + 15766.

It is an arithmetic number, because the mean of its divisors is an integer number (1812240).

Almost surely, 2^20084995 is an apocalyptic number.

20084995 is a deficient number, since it is larger than the sum of its proper divisors (8910845).

20084995 is a wasteful number, since it uses less digits than its factorization.

20084995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30234.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 20084995 is about 4481.6286102264. The cubic root of 20084995 is about 271.8257381130.

The spelling of 20084995 in words is "twenty million, eighty-four thousand, nine hundred ninety-five".