3967893249 has 4 divisors (see below), whose sum is σ = 5290524336. Its totient is φ = 2645262164.

The previous prime is 3967893247. The next prime is 3967893287. The reversal of 3967893249 is 9423987693.

3967893249 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 3967893249 - 2¹ = 3967893247 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3967893192 and 3967893201.

It is not an unprimeable number, because it can be changed into a prime (3967893247) 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, 661315539 + ... + 661315544.

It is an arithmetic number, because the mean of its divisors is an integer number (1322631084).

Almost surely, 2^3967893249 is an apocalyptic number.

It is an amenable number.

3967893249 is a deficient number, since it is larger than the sum of its proper divisors (1322631087).

3967893249 is a wasteful number, since it uses less digits than its factorization.

3967893249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1322631086.

The product of its digits is 17635968, while the sum is 60.

The square root of 3967893249 is about 62991.2156494856. The cubic root of 3967893249 is about 1583.1424465376.

The spelling of 3967893249 in words is "three billion, nine hundred sixty-seven million, eight hundred ninety-three thousand, two hundred forty-nine".