20474023 has 2 divisors, whose sum is σ = 20474024. Its totient is φ = 20474022.

The previous prime is 20474021. The next prime is 20474053. The reversal of 20474023 is 32047402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20474023 - 2¹ = 20474021 is a prime.

Together with 20474021, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 20473985 and 20474003.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20474021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10237011 + 10237012.

It is an arithmetic number, because the mean of its divisors is an integer number (10237012).

Almost surely, 2^20474023 is an apocalyptic number.

20474023 is a deficient number, since it is larger than the sum of its proper divisors (1).

20474023 is an equidigital number, since it uses as much as digits as its factorization.

20474023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 22.

The square root of 20474023 is about 4524.8229799629. The cubic root of 20474023 is about 273.5695329249.

The spelling of 20474023 in words is "twenty million, four hundred seventy-four thousand, twenty-three".