248284861 has 12 divisors (see below), whose sum is σ = 273811356. Its totient is φ = 224966720.

The previous prime is 248284849. The next prime is 248284903. The reversal of 248284861 is 168482842.

It can be written as a sum of positive squares in 2 ways, for example, as 27762361 + 220522500 = 5269^2 + 14850^2 .

It is not a de Polignac number, because 248284861 - 2⁷ = 248284733 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 (248284801) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35121 + ... + 41593.

It is an arithmetic number, because the mean of its divisors is an integer number (22817613).

Almost surely, 2^248284861 is an apocalyptic number.

It is an amenable number.

248284861 is a deficient number, since it is larger than the sum of its proper divisors (25526495).

248284861 is a wasteful number, since it uses less digits than its factorization.

248284861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6812 (or 6801 counting only the distinct ones).

The product of its digits is 196608, while the sum is 43.

The square root of 248284861 is about 15757.0574981498. The cubic root of 248284861 is about 628.5165913470.

The spelling of 248284861 in words is "two hundred forty-eight million, two hundred eighty-four thousand, eight hundred sixty-one".