3965940465 has 8 divisors (see below), whose sum is σ = 6345504768. Its totient is φ = 2115168240.

The previous prime is 3965940463. The next prime is 3965940467. The reversal of 3965940465 is 5640495693.

It is an interprime number because it is at equal distance from previous prime (3965940463) and next prime (3965940467).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3965940465 - 2¹ = 3965940463 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3965940463) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132198001 + ... + 132198030.

It is an arithmetic number, because the mean of its divisors is an integer number (793188096).

Almost surely, 2^3965940465 is an apocalyptic number.

It is an amenable number.

3965940465 is a deficient number, since it is larger than the sum of its proper divisors (2379564303).

3965940465 is a wasteful number, since it uses less digits than its factorization.

3965940465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264396039.

The product of its (nonzero) digits is 3499200, while the sum is 51.

The square root of 3965940465 is about 62975.7132948885. The cubic root of 3965940465 is about 1582.8826913521.

The spelling of 3965940465 in words is "three billion, nine hundred sixty-five million, nine hundred forty thousand, four hundred sixty-five".