502327421 has 2 divisors, whose sum is σ = 502327422. Its totient is φ = 502327420.

The previous prime is 502327403. The next prime is 502327447. The reversal of 502327421 is 124723205.

It is an a-pointer prime, because the next prime (502327447) can be obtained adding 502327421 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 501984025 + 343396 = 22405^2 + 586^2 .

It is a cyclic number.

It is not a de Polignac number, because 502327421 - 2¹⁰ = 502326397 is a prime.

It is a super-2 number, since 2×502327421² = 504665675777022482, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (502327621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 251163710 + 251163711.

It is an arithmetic number, because the mean of its divisors is an integer number (251163711).

Almost surely, 2^502327421 is an apocalyptic number.

It is an amenable number.

502327421 is a deficient number, since it is larger than the sum of its proper divisors (1).

502327421 is an equidigital number, since it uses as much as digits as its factorization.

502327421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 502327421 is about 22412.6620685719. The cubic root of 502327421 is about 794.9301369194.

The spelling of 502327421 in words is "five hundred two million, three hundred twenty-seven thousand, four hundred twenty-one".