3920727249 has 12 divisors (see below), whose sum is σ = 5665793796. Its totient is φ = 2612654592.

The previous prime is 3920727227. The next prime is 3920727259. The reversal of 3920727249 is 9427270293.

3920727249 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 3268180224 + 652547025 = 57168^2 + 25545^2 .

It is not a de Polignac number, because 3920727249 - 2¹¹ = 3920725201 is a prime.

It is a super-2 number, since 2×3920727249² = 30744204322102216002, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3920727259) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 75372 + ... + 116285.

It is an arithmetic number, because the mean of its divisors is an integer number (472149483).

Almost surely, 2^3920727249 is an apocalyptic number.

It is an amenable number.

3920727249 is a deficient number, since it is larger than the sum of its proper divisors (1745066547).

3920727249 is a wasteful number, since it uses less digits than its factorization.

3920727249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193936 (or 193933 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 45.

The square root of 3920727249 is about 62615.7108799381. The cubic root of 3920727249 is about 1576.8445340494.

The spelling of 3920727249 in words is "three billion, nine hundred twenty million, seven hundred twenty-seven thousand, two hundred forty-nine".