3706859521 has 2 divisors, whose sum is σ = 3706859522. Its totient is φ = 3706859520.

The previous prime is 3706859501. The next prime is 3706859579. The reversal of 3706859521 is 1259586073.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3701383921 + 5475600 = 60839^2 + 2340^2 .

It is a cyclic number.

It is not a de Polignac number, because 3706859521 - 2²⁵ = 3673305089 is a prime.

It is not a weakly prime, because it can be changed into another prime (3706859501) 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, 1853429760 + 1853429761.

It is an arithmetic number, because the mean of its divisors is an integer number (1853429761).

Almost surely, 2^3706859521 is an apocalyptic number.

It is an amenable number.

3706859521 is a deficient number, since it is larger than the sum of its proper divisors (1).

3706859521 is an equidigital number, since it uses as much as digits as its factorization.

3706859521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 453600, while the sum is 46.

The square root of 3706859521 is about 60883.9841091235. The cubic root of 3706859521 is about 1547.6355933083.

The spelling of 3706859521 in words is "three billion, seven hundred six million, eight hundred fifty-nine thousand, five hundred twenty-one".