8242972849 has 8 divisors (see below), whose sum is σ = 8445615552. Its totient is φ = 8040827760.

The previous prime is 8242972807. The next prime is 8242972877. The reversal of 8242972849 is 9482792428.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8242972849 - 2⁷ = 8242972721 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8242972849.

It is not an unprimeable number, because it can be changed into a prime (8242972249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90757 + ... + 157234.

It is an arithmetic number, because the mean of its divisors is an integer number (1055701944).

Almost surely, 2^8242972849 is an apocalyptic number.

It is an amenable number.

8242972849 is a deficient number, since it is larger than the sum of its proper divisors (202642703).

8242972849 is a wasteful number, since it uses less digits than its factorization.

8242972849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248807.

The product of its digits is 4644864, while the sum is 55.

The square root of 8242972849 is about 90790.8191889466. The cubic root of 8242972849 is about 2020.0461422162.

The spelling of 8242972849 in words is "eight billion, two hundred forty-two million, nine hundred seventy-two thousand, eight hundred forty-nine".