3534403021 has 2 divisors, whose sum is σ = 3534403022. Its totient is φ = 3534403020.

The previous prime is 3534403007. The next prime is 3534403049. The reversal of 3534403021 is 1203044353.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2599878121 + 934524900 = 50989^2 + 30570^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3534403021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3534403051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1767201510 + 1767201511.

It is an arithmetic number, because the mean of its divisors is an integer number (1767201511).

Almost surely, 2^3534403021 is an apocalyptic number.

It is an amenable number.

3534403021 is a deficient number, since it is larger than the sum of its proper divisors (1).

3534403021 is an equidigital number, since it uses as much as digits as its factorization.

3534403021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 3534403021 is about 59450.8454187155. The cubic root of 3534403021 is about 1523.2529337752.

Adding to 3534403021 its reverse (1203044353), we get a palindrome (4737447374).

The spelling of 3534403021 in words is "three billion, five hundred thirty-four million, four hundred three thousand, twenty-one".