248709605 has 4 divisors (see below), whose sum is σ = 298451532. Its totient is φ = 198967680.

The previous prime is 248709589. The next prime is 248709607. The reversal of 248709605 is 506907842.

248709605 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 28751044 + 219958561 = 5362^2 + 14831^2 .

It is not a de Polignac number, because 248709605 - 2⁴ = 248709589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (248709607) 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, 24870956 + ... + 24870965.

It is an arithmetic number, because the mean of its divisors is an integer number (74612883).

Almost surely, 2^248709605 is an apocalyptic number.

It is an amenable number.

248709605 is a deficient number, since it is larger than the sum of its proper divisors (49741927).

248709605 is an equidigital number, since it uses as much as digits as its factorization.

248709605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49741926.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 248709605 is about 15770.5296360014. The cubic root of 248709605 is about 628.8747908827.

The spelling of 248709605 in words is "two hundred forty-eight million, seven hundred nine thousand, six hundred five".