248438217 has 8 divisors (see below), whose sum is σ = 333102240. Its totient is φ = 164699840.

The previous prime is 248438209. The next prime is 248438251. The reversal of 248438217 is 712834842.

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 248438217 - 2³ = 248438209 is a prime.

It is a super-2 number, since 2×248438217² = 123443095332278178, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (248438257) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 230784 + ... + 231857.

It is an arithmetic number, because the mean of its divisors is an integer number (41637780).

Almost surely, 2^248438217 is an apocalyptic number.

It is an amenable number.

248438217 is a deficient number, since it is larger than the sum of its proper divisors (84664023).

248438217 is a wasteful number, since it uses less digits than its factorization.

248438217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462823.

The product of its digits is 86016, while the sum is 39.

The square root of 248438217 is about 15761.9230108512. The cubic root of 248438217 is about 628.6459682141.

The spelling of 248438217 in words is "two hundred forty-eight million, four hundred thirty-eight thousand, two hundred seventeen".