3925607897 has 4 divisors (see below), whose sum is σ = 3926544336. Its totient is φ = 3924671460.

The previous prime is 3925607891. The next prime is 3925607899. The reversal of 3925607897 is 7987065293.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7987065293 = 409 ⋅19528277.

It is a cyclic number.

It is not a de Polignac number, because 3925607897 - 2¹⁰ = 3925606873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3925607891) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 461903 + ... + 470324.

It is an arithmetic number, because the mean of its divisors is an integer number (981636084).

Almost surely, 2^3925607897 is an apocalyptic number.

It is an amenable number.

3925607897 is a deficient number, since it is larger than the sum of its proper divisors (936439).

3925607897 is an equidigital number, since it uses as much as digits as its factorization.

3925607897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 936438.

The product of its (nonzero) digits is 5715360, while the sum is 56.

The square root of 3925607897 is about 62654.6717891012. The cubic root of 3925607897 is about 1577.4985650850.

The spelling of 3925607897 in words is "three billion, nine hundred twenty-five million, six hundred seven thousand, eight hundred ninety-seven".