8073644249 has 4 divisors (see below), whose sum is σ = 8807611920. Its totient is φ = 7339676580.

The previous prime is 8073644231. The next prime is 8073644269. The reversal of 8073644249 is 9424463708.

It is a happy number.

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 a de Polignac number, because none of the positive numbers 2^k-8073644249 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8073644209) 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, 366983819 + ... + 366983840.

It is an arithmetic number, because the mean of its divisors is an integer number (2201902980).

Almost surely, 2^8073644249 is an apocalyptic number.

It is an amenable number.

8073644249 is a deficient number, since it is larger than the sum of its proper divisors (733967671).

8073644249 is a wasteful number, since it uses less digits than its factorization.

8073644249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 733967670.

The product of its (nonzero) digits is 1161216, while the sum is 47.

The square root of 8073644249 is about 89853.4598610426. The cubic root of 8073644249 is about 2006.1182849589.

The spelling of 8073644249 in words is "eight billion, seventy-three million, six hundred forty-four thousand, two hundred forty-nine".