5320921 has 2 divisors, whose sum is σ = 5320922. Its totient is φ = 5320920.

The previous prime is 5320883. The next prime is 5320927. The reversal of 5320921 is 1290235.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4579600 + 741321 = 2140^2 + 861^2 .

It is a cyclic number.

It is not a de Polignac number, because 5320921 - 2⁹ = 5320409 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 5320892 and 5320901.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5320927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2660460 + 2660461.

It is an arithmetic number, because the mean of its divisors is an integer number (2660461).

Almost surely, 2^5320921 is an apocalyptic number.

It is an amenable number.

5320921 is a deficient number, since it is larger than the sum of its proper divisors (1).

5320921 is an equidigital number, since it uses as much as digits as its factorization.

5320921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 5320921 is about 2306.7121623644. The cubic root of 5320921 is about 174.5804480144.

It can be divided in two parts, 5320 and 921, that added together give a square (6241 = 79²).

The spelling of 5320921 in words is "five million, three hundred twenty thousand, nine hundred twenty-one".