3511421 has 2 divisors, whose sum is σ = 3511422. Its totient is φ = 3511420.

The previous prime is 3511397. The next prime is 3511427. The reversal of 3511421 is 1241153.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2044900 + 1466521 = 1430^2 + 1211^2 .

It is a cyclic number.

It is not a de Polignac number, because 3511421 - 2¹⁸ = 3249277 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3511421.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3511427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1755710 + 1755711.

It is an arithmetic number, because the mean of its divisors is an integer number (1755711).

Almost surely, 2^3511421 is an apocalyptic number.

It is an amenable number.

3511421 is a deficient number, since it is larger than the sum of its proper divisors (1).

3511421 is an equidigital number, since it uses as much as digits as its factorization.

3511421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120, while the sum is 17.

The square root of 3511421 is about 1873.8785979887. The cubic root of 3511421 is about 151.9944163461.

Adding to 3511421 its reverse (1241153), we get a palindrome (4752574).

The spelling of 3511421 in words is "three million, five hundred eleven thousand, four hundred twenty-one".