248646817 has 2 divisors, whose sum is σ = 248646818. Its totient is φ = 248646816.

The previous prime is 248646791. The next prime is 248646847. The reversal of 248646817 is 718646842.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 206669376 + 41977441 = 14376^2 + 6479^2 .

It is a cyclic number.

It is not a de Polignac number, because 248646817 - 2²³ = 240258209 is a prime.

It is not a weakly prime, because it can be changed into another prime (248646847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124323408 + 124323409.

It is an arithmetic number, because the mean of its divisors is an integer number (124323409).

Almost surely, 2^248646817 is an apocalyptic number.

It is an amenable number.

248646817 is a deficient number, since it is larger than the sum of its proper divisors (1).

248646817 is an equidigital number, since it uses as much as digits as its factorization.

248646817 is an evil number, because the sum of its binary digits is even.

The product of its digits is 516096, while the sum is 46.

The square root of 248646817 is about 15768.5388352884. The cubic root of 248646817 is about 628.8218655529.

The spelling of 248646817 in words is "two hundred forty-eight million, six hundred forty-six thousand, eight hundred seventeen".