248240747 has 2 divisors, whose sum is σ = 248240748. Its totient is φ = 248240746.

The previous prime is 248240743. The next prime is 248240753. The reversal of 248240747 is 747042842.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 248240747 - 2² = 248240743 is a prime.

It is a super-2 number, since 2×248240747² = 123246936942236018, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 248240747.

It is not a weakly prime, because it can be changed into another prime (248240743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124120373 + 124120374.

It is an arithmetic number, because the mean of its divisors is an integer number (124120374).

Almost surely, 2^248240747 is an apocalyptic number.

248240747 is a deficient number, since it is larger than the sum of its proper divisors (1).

248240747 is an equidigital number, since it uses as much as digits as its factorization.

248240747 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 100352, while the sum is 38.

The square root of 248240747 is about 15755.6576187730. The cubic root of 248240747 is about 628.4793652578.

The spelling of 248240747 in words is "two hundred forty-eight million, two hundred forty thousand, seven hundred forty-seven".