3521243477 has 4 divisors (see below), whose sum is σ = 3521384556. Its totient is φ = 3521102400.

The previous prime is 3521243471. The next prime is 3521243513. The reversal of 3521243477 is 7743421253.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3437594161 + 83649316 = 58631^2 + 9146^2 .

It is a cyclic number.

It is not a de Polignac number, because 3521243477 - 2¹⁴ = 3521227093 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3521243477.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3521243471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21938 + ... + 86739.

It is an arithmetic number, because the mean of its divisors is an integer number (880346139).

Almost surely, 2^3521243477 is an apocalyptic number.

It is an amenable number.

3521243477 is a deficient number, since it is larger than the sum of its proper divisors (141079).

3521243477 is a wasteful number, since it uses less digits than its factorization.

3521243477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141078.

The product of its digits is 141120, while the sum is 38.

The square root of 3521243477 is about 59340.0663717189. The cubic root of 3521243477 is about 1521.3600876070.

The spelling of 3521243477 in words is "three billion, five hundred twenty-one million, two hundred forty-three thousand, four hundred seventy-seven".