20046047 has 12 divisors (see below), whose sum is σ = 24124680. Its totient is φ = 16588656.

The previous prime is 20046011. The next prime is 20046053. The reversal of 20046047 is 74064002.

It is not a de Polignac number, because 20046047 - 2⁸ = 20045791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20046347) 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, 5633 + ... + 8474.

It is an arithmetic number, because the mean of its divisors is an integer number (2010390).

Almost surely, 2^20046047 is an apocalyptic number.

20046047 is a deficient number, since it is larger than the sum of its proper divisors (4078633).

20046047 is a wasteful number, since it uses less digits than its factorization.

20046047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14150 (or 14143 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 20046047 is about 4477.2812062679. The cubic root of 20046047 is about 271.6499199700.

The spelling of 20046047 in words is "twenty million, forty-six thousand, forty-seven".