3287943749 has 4 divisors (see below), whose sum is σ = 3460993440. Its totient is φ = 3114894060.

The previous prime is 3287943727. The next prime is 3287943751. The reversal of 3287943749 is 9473497823.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3287943749 - 2²⁰ = 3286895173 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3287943694 and 3287943703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3287943349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86524817 + ... + 86524854.

It is an arithmetic number, because the mean of its divisors is an integer number (865248360).

Almost surely, 2^3287943749 is an apocalyptic number.

It is an amenable number.

3287943749 is a deficient number, since it is larger than the sum of its proper divisors (173049691).

3287943749 is a wasteful number, since it uses less digits than its factorization.

3287943749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173049690.

The product of its digits is 9144576, while the sum is 56.

The square root of 3287943749 is about 57340.5942504959. The cubic root of 3287943749 is about 1486.9902684323.

The spelling of 3287943749 in words is "three billion, two hundred eighty-seven million, nine hundred forty-three thousand, seven hundred forty-nine".