248840477 has 4 divisors (see below), whose sum is σ = 248888796. Its totient is φ = 248792160.

The previous prime is 248840461. The next prime is 248840489. The reversal of 248840477 is 774048842.

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 179051161 + 69789316 = 13381^2 + 8354^2 .

It is a cyclic number.

It is not a de Polignac number, because 248840477 - 2⁴ = 248840461 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 (248840437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15368 + ... + 27089.

It is an arithmetic number, because the mean of its divisors is an integer number (62222199).

Almost surely, 2^248840477 is an apocalyptic number.

It is an amenable number.

248840477 is a deficient number, since it is larger than the sum of its proper divisors (48319).

248840477 is an equidigital number, since it uses as much as digits as its factorization.

248840477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48318.

The product of its (nonzero) digits is 401408, while the sum is 44.

The square root of 248840477 is about 15774.6783485433. The cubic root of 248840477 is about 628.9850770267.

The spelling of 248840477 in words is "two hundred forty-eight million, eight hundred forty thousand, four hundred seventy-seven".