3249912065 has 4 divisors (see below), whose sum is σ = 3899894484. Its totient is φ = 2599929648.

The previous prime is 3249912053. The next prime is 3249912077. The reversal of 3249912065 is 5602199423.

It is a Cunningham number, because it is equal to 57008²+1.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5602199423 = 10597 ⋅528659.

It is an interprime number because it is at equal distance from previous prime (3249912053) and next prime (3249912077).

It can be written as a sum of positive squares in 2 ways, for example, as 1169913616 + 2079998449 = 34204^2 + 45607^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3249912065 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 324991202 + ... + 324991211.

It is an arithmetic number, because the mean of its divisors is an integer number (974973621).

Almost surely, 2^3249912065 is an apocalyptic number.

It is an amenable number.

3249912065 is a deficient number, since it is larger than the sum of its proper divisors (649982419).

3249912065 is an equidigital number, since it uses as much as digits as its factorization.

3249912065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 649982418.

The product of its (nonzero) digits is 116640, while the sum is 41.

The square root of 3249912065 is about 57008.0000087707. Note that the first 5 decimals coincide. The cubic root of 3249912065 is about 1481.2346747452.

The spelling of 3249912065 in words is "three billion, two hundred forty-nine million, nine hundred twelve thousand, sixty-five".