861248 has 14 divisors (see below), whose sum is σ = 1709166. Its totient is φ = 430592.

The previous prime is 861239. The next prime is 861293. The reversal of 861248 is 842168.

It can be written as a sum of positive squares in only one way, i.e., 861184 + 64 = 928^2 + 8^2 .

It is a nialpdrome in base 8.

It is a self number, because there is not a number n which added to its sum of digits gives 861248.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 861248.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6665 + ... + 6792.

2⁸⁶¹²⁴⁸ is an apocalyptic number.

It is an amenable number.

861248 is a deficient number, since it is larger than the sum of its proper divisors (847918).

861248 is a wasteful number, since it uses less digits than its factorization.

861248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13469 (or 13459 counting only the distinct ones).

The product of its digits is 3072, while the sum is 29.

The square root of 861248 is about 928.0344821180. The cubic root of 861248 is about 95.1428322359.

It can be divided in two parts, 8 and 61248, that multiplied together give a palindrome (489984).

The spelling of 861248 in words is "eight hundred sixty-one thousand, two hundred forty-eight".