5221397 has 8 divisors (see below), whose sum is σ = 5585112. Its totient is φ = 4864000.

The previous prime is 5221387. The next prime is 5221399. The reversal of 5221397 is 7931225.

It can be written as a sum of positive squares in 4 ways, for example, as 4363921 + 857476 = 2089^2 + 926^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5221397 - 2¹⁶ = 5155861 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5221399) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197 + ... + 3237.

It is an arithmetic number, because the mean of its divisors is an integer number (698139).

Almost surely, 2^5221397 is an apocalyptic number.

It is an amenable number.

5221397 is a deficient number, since it is larger than the sum of its proper divisors (363715).

5221397 is a wasteful number, since it uses less digits than its factorization.

5221397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3159.

The product of its digits is 3780, while the sum is 29.

The square root of 5221397 is about 2285.0376364515. The cubic root of 5221397 is about 173.4851230368.

The spelling of 5221397 in words is "five million, two hundred twenty-one thousand, three hundred ninety-seven".