7967849 has 4 divisors (see below), whose sum is σ = 8436564. Its totient is φ = 7499136.

The previous prime is 7967831. The next prime is 7967851. The reversal of 7967849 is 9487697.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7327849 + 640000 = 2707^2 + 800^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7967849 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7967797 and 7967806.

It is not an unprimeable number, because it can be changed into a prime (7967819) 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, 234332 + ... + 234365.

It is an arithmetic number, because the mean of its divisors is an integer number (2109141).

Almost surely, 2^7967849 is an apocalyptic number.

It is an amenable number.

7967849 is a deficient number, since it is larger than the sum of its proper divisors (468715).

7967849 is a wasteful number, since it uses less digits than its factorization.

7967849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468714.

The product of its digits is 762048, while the sum is 50.

The square root of 7967849 is about 2822.7378553454. The cubic root of 7967849 is about 199.7317152775.

The spelling of 7967849 in words is "seven million, nine hundred sixty-seven thousand, eight hundred forty-nine".