248872661 has 8 divisors (see below), whose sum is σ = 255467520. Its totient is φ = 242332048.

The previous prime is 248872651. The next prime is 248872699. The reversal of 248872661 is 166278842.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-248872661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (248872651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4181 + ... + 22698.

It is an arithmetic number, because the mean of its divisors is an integer number (31933440).

Almost surely, 2^248872661 is an apocalyptic number.

It is an amenable number.

248872661 is a deficient number, since it is larger than the sum of its proper divisors (6594859).

248872661 is a wasteful number, since it uses less digits than its factorization.

248872661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27123.

The product of its digits is 258048, while the sum is 44.

The square root of 248872661 is about 15775.6984314483. The cubic root of 248872661 is about 629.0121926355.

The spelling of 248872661 in words is "two hundred forty-eight million, eight hundred seventy-two thousand, six hundred sixty-one".