20167047 has 12 divisors (see below), whose sum is σ = 29246880. Its totient is φ = 13390848.

The previous prime is 20167033. The next prime is 20167061. The reversal of 20167047 is 74076102.

It is an interprime number because it is at equal distance from previous prime (20167033) and next prime (20167061).

It is not a de Polignac number, because 20167047 - 2⁴ = 20167031 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20167047.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20167547) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2047 + ... + 6672.

It is an arithmetic number, because the mean of its divisors is an integer number (2437240).

Almost surely, 2^20167047 is an apocalyptic number.

20167047 is a deficient number, since it is larger than the sum of its proper divisors (9079833).

20167047 is a wasteful number, since it uses less digits than its factorization.

20167047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8982 (or 8979 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 20167047 is about 4490.7735413846. The cubic root of 20167047 is about 272.1953928732.

The spelling of 20167047 in words is "twenty million, one hundred sixty-seven thousand, forty-seven".