861353 has 2 divisors, whose sum is σ = 861354. Its totient is φ = 861352.

The previous prime is 861347. The next prime is 861361. The reversal of 861353 is 353168.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 861184 + 169 = 928^2 + 13^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-861353 is a prime.

It is not a weakly prime, because it can be changed into another prime (861053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 430676 + 430677.

It is an arithmetic number, because the mean of its divisors is an integer number (430677).

2⁸⁶¹³⁵³ is an apocalyptic number.

It is an amenable number.

861353 is a deficient number, since it is larger than the sum of its proper divisors (1).

861353 is an equidigital number, since it uses as much as digits as its factorization.

861353 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2160, while the sum is 26.

The square root of 861353 is about 928.0910515677. The cubic root of 861353 is about 95.1466985599.

The spelling of 861353 in words is "eight hundred sixty-one thousand, three hundred fifty-three".