8601381 has 6 divisors (see below), whose sum is σ = 12424230. Its totient is φ = 5734248.

The previous prime is 8601361. The next prime is 8601389. The reversal of 8601381 is 1831068.

8601381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 7650756 + 950625 = 2766^2 + 975^2 .

It is not a de Polignac number, because 8601381 - 2⁷ = 8601253 is a prime.

It is a super-2 number, since 2×8601381² = 147967510214322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8601389) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 477846 + ... + 477863.

It is an arithmetic number, because the mean of its divisors is an integer number (2070705).

Almost surely, 2^8601381 is an apocalyptic number.

It is an amenable number.

8601381 is a deficient number, since it is larger than the sum of its proper divisors (3822849).

8601381 is a wasteful number, since it uses less digits than its factorization.

8601381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 955715 (or 955712 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 8601381 is about 2932.8111088169. The cubic root of 8601381 is about 204.8909275016.

The spelling of 8601381 in words is "eight million, six hundred one thousand, three hundred eighty-one".