20058947 has 4 divisors (see below), whose sum is σ = 20069616. Its totient is φ = 20048280.

The previous prime is 20058937. The next prime is 20058949. The reversal of 20058947 is 74985002.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 74985002 = 2 ⋅37492501.

It is a cyclic number.

It is not a de Polignac number, because 20058947 - 2²⁰ = 19010371 is a prime.

It is a super-2 number, since 2×20058947² = 804722709497618, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20058949) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1679 + ... + 6552.

It is an arithmetic number, because the mean of its divisors is an integer number (5017404).

Almost surely, 2^20058947 is an apocalyptic number.

20058947 is a deficient number, since it is larger than the sum of its proper divisors (10669).

20058947 is an equidigital number, since it uses as much as digits as its factorization.

20058947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10668.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 20058947 is about 4478.7215809871. The cubic root of 20058947 is about 271.7081780486.

The spelling of 20058947 in words is "twenty million, fifty-eight thousand, nine hundred forty-seven".