3955906816 has 27 divisors (see below), whose sum is σ = 7898370123. Its totient is φ = 1977450240.

The previous prime is 3955906813. The next prime is 3955906847. The reversal of 3955906816 is 6186095593.

The square root of 3955906816 is 62896.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3955906813) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1004371 + ... + 1008301.

Almost surely, 2^3955906816 is an apocalyptic number.

3955906816 is the 62896-th square number.

It is an amenable number.

3955906816 is a deficient number, since it is larger than the sum of its proper divisors (3942463307).

3955906816 is an frugal number, since it uses more digits than its factorization.

3955906816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7878 (or 3933 counting only the distinct ones).

The product of its (nonzero) digits is 1749600, while the sum is 52.

The cubic root of 3955906816 is about 1581.5466903048.

The spelling of 3955906816 in words is "three billion, nine hundred fifty-five million, nine hundred six thousand, eight hundred sixteen".