20314287 has 32 divisors (see below), whose sum is σ = 36211200. Its totient is φ = 10995264.

The previous prime is 20314277. The next prime is 20314289. The reversal of 20314287 is 78241302.

It is not a de Polignac number, because 20314287 - 2¹¹ = 20312239 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 20314287.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20314289) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 763 + ... + 6419.

It is an arithmetic number, because the mean of its divisors is an integer number (1131600).

Almost surely, 2^20314287 is an apocalyptic number.

20314287 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

20314287 is a deficient number, since it is larger than the sum of its proper divisors (15896913).

20314287 is a wasteful number, since it uses less digits than its factorization.

20314287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5692 (or 5686 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 20314287 is about 4507.1373398200. The cubic root of 20314287 is about 272.8562218397.

Adding to 20314287 its reverse (78241302), we get a palindrome (98555589).

The spelling of 20314287 in words is "twenty million, three hundred fourteen thousand, two hundred eighty-seven".