20084377 has 4 divisors (see below), whose sum is σ = 20627236. Its totient is φ = 19541520.

The previous prime is 20084357. The next prime is 20084381. The reversal of 20084377 is 77348002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16128256 + 3956121 = 4016^2 + 1989^2 .

It is a cyclic number.

It is not a de Polignac number, because 20084377 - 2¹¹ = 20082329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20084357) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 271374 + ... + 271447.

It is an arithmetic number, because the mean of its divisors is an integer number (5156809).

Almost surely, 2^20084377 is an apocalyptic number.

It is an amenable number.

20084377 is a deficient number, since it is larger than the sum of its proper divisors (542859).

20084377 is an equidigital number, since it uses as much as digits as its factorization.

20084377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542858.

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 20084377 is about 4481.5596615464. The cubic root of 20084377 is about 271.8229501274.

The spelling of 20084377 in words is "twenty million, eighty-four thousand, three hundred seventy-seven".