3865963958 has 16 divisors (see below), whose sum is σ = 6007653360. Its totient is φ = 1863607200.

The previous prime is 3865963951. The next prime is 3865963963. The reversal of 3865963958 is 8593695683.

It is a super-3 number, since 3×3865963958³ (a number of 30 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3865963958.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3865963951) 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, 8153 + ... + 88308.

It is an arithmetic number, because the mean of its divisors is an integer number (375478335).

Almost surely, 2^3865963958 is an apocalyptic number.

3865963958 is a deficient number, since it is larger than the sum of its proper divisors (2141689402).

3865963958 is a wasteful number, since it uses less digits than its factorization.

3865963958 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97183.

The product of its digits is 41990400, while the sum is 62.

The square root of 3865963958 is about 62176.8763930772. The cubic root of 3865963958 is about 1569.4684879104.

The spelling of 3865963958 in words is "three billion, eight hundred sixty-five million, nine hundred sixty-three thousand, nine hundred fifty-eight".