3723806529 has 9 divisors (see below), whose sum is σ = 5379096099. Its totient is φ = 2482415640.

The previous prime is 3723806519. The next prime is 3723806533. The reversal of 3723806529 is 9256083273.

The square root of 3723806529 is 61023.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 2335498929 + 1388307600 = 48327^2 + 37260^2 .

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 3723806529 - 2²⁷ = 3589588801 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3723806519) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 172899 + ... + 193239.

Almost surely, 2^3723806529 is an apocalyptic number.

3723806529 is the 61023-rd square number.

3723806529 is the 30512-nd centered octagonal number.

It is an amenable number.

3723806529 is a deficient number, since it is larger than the sum of its proper divisors (1655289570).

3723806529 is an frugal number, since it uses more digits than its factorization.

3723806529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40688 (or 20344 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The cubic root of 3723806529 is about 1549.9904999765.

The spelling of 3723806529 in words is "three billion, seven hundred twenty-three million, eight hundred six thousand, five hundred twenty-nine".