367861 has 4 divisors (see below), whose sum is σ = 396172. Its totient is φ = 339552.

The previous prime is 367853. The next prime is 367867. The reversal of 367861 is 168763.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 168763 = 7 ⋅24109.

It can be written as a sum of positive squares in 2 ways, for example, as 44100 + 323761 = 210^2 + 569^2 .

It is a cyclic number.

It is not a de Polignac number, because 367861 - 2³ = 367853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (367867) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14136 + ... + 14161.

It is an arithmetic number, because the mean of its divisors is an integer number (99043).

2³⁶⁷⁸⁶¹ is an apocalyptic number.

It is an amenable number.

367861 is a deficient number, since it is larger than the sum of its proper divisors (28311).

367861 is a wasteful number, since it uses less digits than its factorization.

367861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28310.

The product of its digits is 6048, while the sum is 31.

The square root of 367861 is about 606.5154573463. The cubic root of 367861 is about 71.6519337541.

The spelling of 367861 in words is "three hundred sixty-seven thousand, eight hundred sixty-one".