861416 has 32 divisors (see below), whose sum is σ = 1728000. Its totient is φ = 401856.

The previous prime is 861391. The next prime is 861433. The reversal of 861416 is 614168.

It is a congruent number.

It is an unprimeable number.

861416 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 7 ways as a sum of consecutive naturals, for example, 10865 + ... + 10943.

It is an arithmetic number, because the mean of its divisors is an integer number (54000).

2⁸⁶¹⁴¹⁶ is an apocalyptic number.

It is an amenable number.

861416 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

861416 is a wasteful number, since it uses less digits than its factorization.

861416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161 (or 157 counting only the distinct ones).

The product of its digits is 1152, while the sum is 26.

The square root of 861416 is about 928.1249915825. The cubic root of 861416 is about 95.1490182035.

The spelling of 861416 in words is "eight hundred sixty-one thousand, four hundred sixteen".