20068047 has 16 divisors (see below), whose sum is σ = 31296000. Its totient is φ = 12674232.

The previous prime is 20068043. The next prime is 20068049. The reversal of 20068047 is 74086002.

It is not a de Polignac number, because 20068047 - 2² = 20068043 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 20068047.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20068043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19047 + ... + 20072.

It is an arithmetic number, because the mean of its divisors is an integer number (1956000).

Almost surely, 2^20068047 is an apocalyptic number.

20068047 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

20068047 is a deficient number, since it is larger than the sum of its proper divisors (11227953).

20068047 is a wasteful number, since it uses less digits than its factorization.

20068047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39147 (or 39141 counting only the distinct ones).

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

The square root of 20068047 is about 4479.7373806954. The cubic root of 20068047 is about 271.7492598099.

The spelling of 20068047 in words is "twenty million, sixty-eight thousand, forty-seven".