248641859 has 4 divisors (see below), whose sum is σ = 248717400. Its totient is φ = 248566320.

The previous prime is 248641849. The next prime is 248641889. The reversal of 248641859 is 958146842.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 248641859 - 2⁴ = 248641843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (248641849) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32597 + ... + 39494.

It is an arithmetic number, because the mean of its divisors is an integer number (62179350).

Almost surely, 2^248641859 is an apocalyptic number.

248641859 is a deficient number, since it is larger than the sum of its proper divisors (75541).

248641859 is an equidigital number, since it uses as much as digits as its factorization.

248641859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75540.

The product of its digits is 552960, while the sum is 47.

The square root of 248641859 is about 15768.3816227284. The cubic root of 248641859 is about 628.8176859705.

The spelling of 248641859 in words is "two hundred forty-eight million, six hundred forty-one thousand, eight hundred fifty-nine".