3261615897 has 16 divisors (see below), whose sum is σ = 4468295360. Its totient is φ = 2114724672.

The previous prime is 3261615871. The next prime is 3261615913. The reversal of 3261615897 is 7985161623.

It is not a de Polignac number, because 3261615897 - 2¹⁴ = 3261599513 is a prime.

It is a super-2 number, since 2×3261615897² = 21276276519126229218, which contains 22 as substring.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3261615817) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 330243 + ... + 339975.

It is an arithmetic number, because the mean of its divisors is an integer number (279268460).

Almost surely, 2^3261615897 is an apocalyptic number.

3261615897 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

It is an amenable number.

3261615897 is a deficient number, since it is larger than the sum of its proper divisors (1206679463).

3261615897 is a wasteful number, since it uses less digits than its factorization.

3261615897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12792.

The product of its digits is 544320, while the sum is 48.

The square root of 3261615897 is about 57110.5585421820. The cubic root of 3261615897 is about 1483.0106563977.

The spelling of 3261615897 in words is "three billion, two hundred sixty-one million, six hundred fifteen thousand, eight hundred ninety-seven".