3681576977 has 8 divisors (see below), whose sum is σ = 3968404776. Its totient is φ = 3395267712.

The previous prime is 3681576961. The next prime is 3681576979. The reversal of 3681576977 is 7796751863.

It is a Cunningham number, because it is equal to 60676²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 1 + 3681576976 = 1^2 + 60676^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3681576977 - 2⁴ = 3681576961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3681576979) 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, 114818 + ... + 143339.

It is an arithmetic number, because the mean of its divisors is an integer number (496050597).

Almost surely, 2^3681576977 is an apocalyptic number.

It is an amenable number.

3681576977 is a deficient number, since it is larger than the sum of its proper divisors (286827799).

3681576977 is a wasteful number, since it uses less digits than its factorization.

3681576977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259267.

The product of its digits is 13335840, while the sum is 59.

The square root of 3681576977 is about 60676.0000082405. Note that the first 5 decimals coincide. The cubic root of 3681576977 is about 1544.1090266879.

The spelling of 3681576977 in words is "three billion, six hundred eighty-one million, five hundred seventy-six thousand, nine hundred seventy-seven".