248666767 has 2 divisors, whose sum is σ = 248666768. Its totient is φ = 248666766.

The previous prime is 248666713. The next prime is 248666771. The reversal of 248666767 is 767666842.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-248666767 is a prime.

It is a super-2 number, since 2×248666767² = 123670322020464578, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (248666867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124333383 + 124333384.

It is an arithmetic number, because the mean of its divisors is an integer number (124333384).

Almost surely, 2^248666767 is an apocalyptic number.

248666767 is a deficient number, since it is larger than the sum of its proper divisors (1).

248666767 is an equidigital number, since it uses as much as digits as its factorization.

248666767 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4064256, while the sum is 52.

The square root of 248666767 is about 15769.1714113329. The cubic root of 248666767 is about 628.8386827944.

The spelling of 248666767 in words is "two hundred forty-eight million, six hundred sixty-six thousand, seven hundred sixty-seven".