861367271 has 16 divisors (see below), whose sum is σ = 963376128. Its totient is φ = 766281600.

The previous prime is 861367259. The next prime is 861367279. The reversal of 861367271 is 172763168.

It is a cyclic number.

It is not a de Polignac number, because 861367271 - 2⁶ = 861367207 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (861367279) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3656 + ... + 41666.

It is an arithmetic number, because the mean of its divisors is an integer number (60211008).

Almost surely, 2^861367271 is an apocalyptic number.

861367271 is a deficient number, since it is larger than the sum of its proper divisors (102008857).

861367271 is a wasteful number, since it uses less digits than its factorization.

861367271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38102.

The product of its digits is 84672, while the sum is 41.

The square root of 861367271 is about 29349.0591160943. The cubic root of 861367271 is about 951.4722402433.

The spelling of 861367271 in words is "eight hundred sixty-one million, three hundred sixty-seven thousand, two hundred seventy-one".