20214473 has 4 divisors (see below), whose sum is σ = 20253648. Its totient is φ = 20175300.

The previous prime is 20214451. The next prime is 20214497. The reversal of 20214473 is 37441202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 37441202 = 2 ⋅18720601.

It is a cyclic number.

It is not a de Polignac number, because 20214473 - 2⁶ = 20214409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20214413) 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, 18803 + ... + 19848.

It is an arithmetic number, because the mean of its divisors is an integer number (5063412).

Almost surely, 2^20214473 is an apocalyptic number.

It is an amenable number.

20214473 is a deficient number, since it is larger than the sum of its proper divisors (39175).

20214473 is an equidigital number, since it uses as much as digits as its factorization.

20214473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39174.

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

The square root of 20214473 is about 4496.0508226665. The cubic root of 20214473 is about 272.4085960028.

Adding to 20214473 its reverse (37441202), we get a palindrome (57655675).

The spelling of 20214473 in words is "twenty million, two hundred fourteen thousand, four hundred seventy-three".