248676509 has 8 divisors (see below), whose sum is σ = 251261568. Its totient is φ = 246102880.

The previous prime is 248676487. The next prime is 248676511. The reversal of 248676509 is 905676842.

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 248676509 - 2²⁴ = 231899293 is a prime.

It is a super-2 number, since 2×248676509² = 123680012256854162, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (248676559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44924 + ... + 50154.

It is an arithmetic number, because the mean of its divisors is an integer number (31407696).

Almost surely, 2^248676509 is an apocalyptic number.

It is an amenable number.

248676509 is a deficient number, since it is larger than the sum of its proper divisors (2585059).

248676509 is a wasteful number, since it uses less digits than its factorization.

248676509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5715.

The product of its (nonzero) digits is 725760, while the sum is 47.

The square root of 248676509 is about 15769.4803021533. The cubic root of 248676509 is about 628.8468946764.

The spelling of 248676509 in words is "two hundred forty-eight million, six hundred seventy-six thousand, five hundred nine".