5961221 has 4 divisors (see below), whose sum is σ = 6812832. Its totient is φ = 5109612.

The previous prime is 5961217. The next prime is 5961223. The reversal of 5961221 is 1221695.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1221695 = 5 ⋅244339.

It is a cyclic number.

It is not a de Polignac number, because 5961221 - 2² = 5961217 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5961223) 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, 425795 + ... + 425808.

It is an arithmetic number, because the mean of its divisors is an integer number (1703208).

Almost surely, 2^5961221 is an apocalyptic number.

It is an amenable number.

5961221 is a deficient number, since it is larger than the sum of its proper divisors (851611).

5961221 is an equidigital number, since it uses as much as digits as its factorization.

5961221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 851610.

The product of its digits is 1080, while the sum is 26.

The square root of 5961221 is about 2441.5611808841. The cubic root of 5961221 is about 181.3197344035.

The spelling of 5961221 in words is "five million, nine hundred sixty-one thousand, two hundred twenty-one".