3287891249 has 2 divisors, whose sum is σ = 3287891250. Its totient is φ = 3287891248.

The previous prime is 3287891237. The next prime is 3287891263. The reversal of 3287891249 is 9421987823.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3173294224 + 114597025 = 56332^2 + 10705^2 .

It is an emirp because it is prime and its reverse (9421987823) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3287891249 - 2¹² = 3287887153 is a prime.

It is a super-3 number, since 3×3287891249³ (a number of 30 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3287891249.

It is not a weakly prime, because it can be changed into another prime (3287891209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1643945624 + 1643945625.

It is an arithmetic number, because the mean of its divisors is an integer number (1643945625).

Almost surely, 2^3287891249 is an apocalyptic number.

It is an amenable number.

3287891249 is a deficient number, since it is larger than the sum of its proper divisors (1).

3287891249 is an equidigital number, since it uses as much as digits as its factorization.

3287891249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1741824, while the sum is 53.

The square root of 3287891249 is about 57340.1364578076. The cubic root of 3287891249 is about 1486.9823539209.

The spelling of 3287891249 in words is "three billion, two hundred eighty-seven million, eight hundred ninety-one thousand, two hundred forty-nine".