3491631361 has 8 divisors (see below), whose sum is σ = 3577175784. Its totient is φ = 3406815360.

The previous prime is 3491631359. The next prime is 3491631389. The reversal of 3491631361 is 1631361943.

It can be written as a sum of positive squares in 4 ways, for example, as 5909761 + 3485721600 = 2431^2 + 59040^2 .

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 3491631361 - 2¹ = 3491631359 is a prime.

It is a super-2 number, since 2×3491631361² = 24382979122237424642, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3491631361.

It is not an unprimeable number, because it can be changed into a prime (3491631061) 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, 172396 + ... + 191581.

It is an arithmetic number, because the mean of its divisors is an integer number (447146973).

Almost surely, 2^3491631361 is an apocalyptic number.

It is an amenable number.

3491631361 is a deficient number, since it is larger than the sum of its proper divisors (85544423).

3491631361 is a wasteful number, since it uses less digits than its factorization.

3491631361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364211.

The product of its digits is 34992, while the sum is 37.

The square root of 3491631361 is about 59090.0275934950. The cubic root of 3491631361 is about 1517.0834193837.

The spelling of 3491631361 in words is "three billion, four hundred ninety-one million, six hundred thirty-one thousand, three hundred sixty-one".