3555976961 has 4 divisors (see below), whose sum is σ = 3609051312. Its totient is φ = 3502902612.

The previous prime is 3555976951. The next prime is 3555976979. The reversal of 3555976961 is 1696795553.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3555976961 - 2¹⁰ = 3555975937 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3555976897 and 3555976906.

It is not an unprimeable number, because it can be changed into a prime (3555976951) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26537075 + ... + 26537208.

It is an arithmetic number, because the mean of its divisors is an integer number (902262828).

Almost surely, 2^3555976961 is an apocalyptic number.

It is an amenable number.

3555976961 is a deficient number, since it is larger than the sum of its proper divisors (53074351).

3555976961 is an equidigital number, since it uses as much as digits as its factorization.

3555976961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53074350.

The product of its digits is 7654500, while the sum is 56.

The square root of 3555976961 is about 59632.0128873745. The cubic root of 3555976961 is about 1526.3459529575.

The spelling of 3555976961 in words is "three billion, five hundred fifty-five million, nine hundred seventy-six thousand, nine hundred sixty-one".