3906378025 has 24 divisors (see below), whose sum is σ = 5292366624. Its totient is φ = 2836646400.

The previous prime is 3906378013. The next prime is 3906378041. The reversal of 3906378025 is 5208736093.

3906378025 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3906378025 - 2²⁵ = 3872823593 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 174522 + ... + 195628.

It is an arithmetic number, because the mean of its divisors is an integer number (220515276).

Almost surely, 2^3906378025 is an apocalyptic number.

It is an amenable number.

3906378025 is a deficient number, since it is larger than the sum of its proper divisors (1385988599).

3906378025 is a wasteful number, since it uses less digits than its factorization.

3906378025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21801 (or 21796 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 43.

The square root of 3906378025 is about 62501.0241916083. The cubic root of 3906378025 is about 1574.9185176625.

The spelling of 3906378025 in words is "three billion, nine hundred six million, three hundred seventy-eight thousand, twenty-five".