3534021 has 6 divisors (see below), whose sum is σ = 5104710. Its totient is φ = 2356008.

The previous prime is 3534017. The next prime is 3534043. The reversal of 3534021 is 1204353.

It can be written as a sum of positive squares in only one way, i.e., 3381921 + 152100 = 1839^2 + 390^2 .

It is not a de Polignac number, because 3534021 - 2² = 3534017 is a prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 3533985 and 3534003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3534061) 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 in 5 ways as a sum of consecutive naturals, for example, 196326 + ... + 196343.

It is an arithmetic number, because the mean of its divisors is an integer number (850785).

Almost surely, 2^3534021 is an apocalyptic number.

It is an amenable number.

3534021 is a deficient number, since it is larger than the sum of its proper divisors (1570689).

3534021 is a wasteful number, since it uses less digits than its factorization.

3534021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392675 (or 392672 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 3534021 is about 1879.8991994253. The cubic root of 3534021 is about 152.3198050808.

Adding to 3534021 its reverse (1204353), we get a palindrome (4738374).

The spelling of 3534021 in words is "three million, five hundred thirty-four thousand, twenty-one".