861048 has 24 divisors (see below), whose sum is σ = 2332200. Its totient is φ = 286992.

The previous prime is 861043. The next prime is 861053. The reversal of 861048 is 840168.

861048 is a `hidden beast` number, since 8 + 610 + 48 = 666.

861048 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (861043) and next prime (861053).

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 861048.

It is not an unprimeable number, because it can be changed into a prime (861043) by changing a digit.

861048 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5908 + ... + 6051.

It is an arithmetic number, because the mean of its divisors is an integer number (97175).

2⁸⁶¹⁰⁴⁸ is an apocalyptic number.

It is an amenable number.

861048 is an abundant number, since it is smaller than the sum of its proper divisors (1471152).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

861048 is a wasteful number, since it uses less digits than its factorization.

861048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11971 (or 11964 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 861048 is about 927.9267212447. The cubic root of 861048 is about 95.1354669398.

The spelling of 861048 in words is "eight hundred sixty-one thousand, forty-eight".