248084689 has 4 divisors (see below), whose sum is σ = 262677924. Its totient is φ = 233491456.

The previous prime is 248084687. The next prime is 248084699. The reversal of 248084689 is 986480842.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 986480842 = 2 ⋅493240421.

It can be written as a sum of positive squares in 2 ways, for example, as 179774464 + 68310225 = 13408^2 + 8265^2 .

It is a cyclic number.

It is not a de Polignac number, because 248084689 - 2¹ = 248084687 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (248084687) 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, 7296592 + ... + 7296625.

It is an arithmetic number, because the mean of its divisors is an integer number (65669481).

Almost surely, 2^248084689 is an apocalyptic number.

It is an amenable number.

248084689 is a deficient number, since it is larger than the sum of its proper divisors (14593235).

248084689 is a wasteful number, since it uses less digits than its factorization.

248084689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14593234.

The product of its (nonzero) digits is 884736, while the sum is 49.

The square root of 248084689 is about 15750.7043969468. The cubic root of 248084689 is about 628.3476385720.

The spelling of 248084689 in words is "two hundred forty-eight million, eighty-four thousand, six hundred eighty-nine".