861070 has 16 divisors (see below), whose sum is σ = 1771488. Its totient is φ = 295200.

The previous prime is 861059. The next prime is 861079. The reversal of 861070 is 70168.

861070 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (861079) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6081 + ... + 6220.

It is an arithmetic number, because the mean of its divisors is an integer number (110718).

2⁸⁶¹⁰⁷⁰ is an apocalyptic number.

861070 is an abundant number, since it is smaller than the sum of its proper divisors (910418).

It is a weird number, because it is abundant, but not a pseudoperfect number.

861070 is a wasteful number, since it uses less digits than its factorization.

861070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12315.

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 861070 is about 927.9385755534. The cubic root of 861070 is about 95.1362771782.

It can be divided in two parts, 86 and 1070, that added together give a square (1156 = 34²).

The spelling of 861070 in words is "eight hundred sixty-one thousand, seventy".