3961655084 has 24 divisors (see below), whose sum is σ = 7188244560. Its totient is φ = 1908181184.

The previous prime is 3961655041. The next prime is 3961655099. The reversal of 3961655084 is 4805561693.

It is a happy number.

It is a super-2 number, since 2×3961655084² = 31389422009166094112, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12842 + ... + 89934.

It is an arithmetic number, because the mean of its divisors is an integer number (299510190).

Almost surely, 2^3961655084 is an apocalyptic number.

It is an amenable number.

3961655084 is a deficient number, since it is larger than the sum of its proper divisors (3226589476).

3961655084 is a wasteful number, since it uses less digits than its factorization.

3961655084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77569 (or 77567 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 47.

The square root of 3961655084 is about 62941.6800220649. The cubic root of 3961655084 is about 1582.3123600402.

The spelling of 3961655084 in words is "three billion, nine hundred sixty-one million, six hundred fifty-five thousand, eighty-four".