4723021 has 2 divisors, whose sum is σ = 4723022. Its totient is φ = 4723020.

The previous prime is 4722979. The next prime is 4723049. The reversal of 4723021 is 1203274.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3132900 + 1590121 = 1770^2 + 1261^2 .

It is a cyclic number.

It is not a de Polignac number, because 4723021 - 2¹⁷ = 4591949 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4723021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4723051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2361510 + 2361511.

It is an arithmetic number, because the mean of its divisors is an integer number (2361511).

Almost surely, 2^4723021 is an apocalyptic number.

It is an amenable number.

4723021 is a deficient number, since it is larger than the sum of its proper divisors (1).

4723021 is an equidigital number, since it uses as much as digits as its factorization.

4723021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 4723021 is about 2173.2512510062. The cubic root of 4723021 is about 167.7799106818.

Adding to 4723021 its reverse (1203274), we get a palindrome (5926295).

The spelling of 4723021 in words is "four million, seven hundred twenty-three thousand, twenty-one".