4020473 has 4 divisors (see below), whose sum is σ = 4159140. Its totient is φ = 3881808.

The previous prime is 4020463. The next prime is 4020493. The reversal of 4020473 is 3740204.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1923769 + 2096704 = 1387^2 + 1448^2 .

It is a cyclic number.

It is not a de Polignac number, because 4020473 - 2⁶ = 4020409 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4020433) 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, 69290 + ... + 69347.

It is an arithmetic number, because the mean of its divisors is an integer number (1039785).

Almost surely, 2^4020473 is an apocalyptic number.

It is an amenable number.

4020473 is a deficient number, since it is larger than the sum of its proper divisors (138667).

4020473 is a wasteful number, since it uses less digits than its factorization.

4020473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138666.

The product of its (nonzero) digits is 672, while the sum is 20.

The square root of 4020473 is about 2005.1117175858. Note that the first 3 decimals coincide. The cubic root of 4020473 is about 159.0104683059.

Adding to 4020473 its reverse (3740204), we get a palindrome (7760677).

The spelling of 4020473 in words is "four million, twenty thousand, four hundred seventy-three".