3427521305 has 8 divisors (see below), whose sum is σ = 4429412232. Its totient is φ = 2531092608.

The previous prime is 3427521299. The next prime is 3427521313. The reversal of 3427521305 is 5031257243.

3427521305 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 50865424 + 3376655881 = 7132^2 + 58109^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3427521305 - 2¹² = 3427517209 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26365484 + ... + 26365613.

It is an arithmetic number, because the mean of its divisors is an integer number (553676529).

Almost surely, 2^3427521305 is an apocalyptic number.

It is an amenable number.

3427521305 is a deficient number, since it is larger than the sum of its proper divisors (1001890927).

3427521305 is a wasteful number, since it uses less digits than its factorization.

3427521305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52731115.

The product of its (nonzero) digits is 25200, while the sum is 32.

The square root of 3427521305 is about 58545.0365530674. The cubic root of 3427521305 is about 1507.7409174866.

Adding to 3427521305 its reverse (5031257243), we get a palindrome (8458778548).

The spelling of 3427521305 in words is "three billion, four hundred twenty-seven million, five hundred twenty-one thousand, three hundred five".