3963954720 has 96 divisors (see below), whose sum is σ = 13621608000. Its totient is φ = 960957440.

The previous prime is 3963954689. The next prime is 3963954733. The reversal of 3963954720 is 274593693.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 3963954720.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 370095 + ... + 380654.

It is an arithmetic number, because the mean of its divisors is an integer number (141891750).

Almost surely, 2^3963954720 is an apocalyptic number.

3963954720 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3963954720 is an abundant number, since it is smaller than the sum of its proper divisors (9657653280).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3963954720 is a wasteful number, since it uses less digits than its factorization.

3963954720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 750778 (or 750770 counting only the distinct ones).

The product of its (nonzero) digits is 1224720, while the sum is 48.

The square root of 3963954720 is about 62959.9453621110. The cubic root of 3963954720 is about 1582.6184643116.

The spelling of 3963954720 in words is "three billion, nine hundred sixty-three million, nine hundred fifty-four thousand, seven hundred twenty".