3965823925 has 96 divisors (see below), whose sum is σ = 6093895680. Its totient is φ = 2500243200.

The previous prime is 3965823923. The next prime is 3965823943. The reversal of 3965823925 is 5293285693.

It is a happy number.

It is not a de Polignac number, because 3965823925 - 2¹ = 3965823923 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3965823923) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 25259947 + ... + 25260103.

It is an arithmetic number, because the mean of its divisors is an integer number (63478080).

Almost surely, 2^3965823925 is an apocalyptic number.

3965823925 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3965823925 is a deficient number, since it is larger than the sum of its proper divisors (2128071755).

3965823925 is a wasteful number, since it uses less digits than its factorization.

3965823925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371 (or 366 counting only the distinct ones).

The product of its digits is 3499200, while the sum is 52.

The square root of 3965823925 is about 62974.7880107587. The cubic root of 3965823925 is about 1582.8671867526.

The spelling of 3965823925 in words is "three billion, nine hundred sixty-five million, eight hundred twenty-three thousand, nine hundred twenty-five".