3631782961 has 8 divisors (see below), whose sum is σ = 3800430720. Its totient is φ = 3464030592.

The previous prime is 3631782941. The next prime is 3631782977. The reversal of 3631782961 is 1692871363.

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 3631782961 - 2¹⁷ = 3631651889 is a prime.

It is a super-3 number, since 3×3631782961³ (a number of 30 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3631782941) 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, 215541 + ... + 231778.

It is an arithmetic number, because the mean of its divisors is an integer number (475053840).

Almost surely, 2^3631782961 is an apocalyptic number.

It is an amenable number.

3631782961 is a deficient number, since it is larger than the sum of its proper divisors (168647759).

3631782961 is a wasteful number, since it uses less digits than its factorization.

3631782961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447695.

The product of its digits is 326592, while the sum is 46.

The square root of 3631782961 is about 60264.2759933279. The cubic root of 3631782961 is about 1537.1159494286.

The spelling of 3631782961 in words is "three billion, six hundred thirty-one million, seven hundred eighty-two thousand, nine hundred sixty-one".