3261698401 has 4 divisors (see below), whose sum is σ = 3512598292. Its totient is φ = 3010798512.

The previous prime is 3261698389. The next prime is 3261698417. The reversal of 3261698401 is 1048961623.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1048961623 = 4583 ⋅228881.

It can be written as a sum of positive squares in 2 ways, for example, as 996033600 + 2265664801 = 31560^2 + 47599^2 .

It is a cyclic number.

It is not a de Polignac number, because 3261698401 - 2¹¹ = 3261696353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3261698501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125449926 + ... + 125449951.

It is an arithmetic number, because the mean of its divisors is an integer number (878149573).

Almost surely, 2^3261698401 is an apocalyptic number.

It is an amenable number.

3261698401 is a deficient number, since it is larger than the sum of its proper divisors (250899891).

3261698401 is a wasteful number, since it uses less digits than its factorization.

3261698401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250899890.

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 3261698401 is about 57111.2808558870. The cubic root of 3261698401 is about 1483.0231607599.

The spelling of 3261698401 in words is "three billion, two hundred sixty-one million, six hundred ninety-eight thousand, four hundred one".