35861 has 8 divisors (see below), whose sum is σ = 42240. Its totient is φ = 29808.

The previous prime is 35851. The next prime is 35863. The reversal of 35861 is 16853.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 35861 - 2⁶ = 35797 is a prime.

It is a super-2 number, since 2×35861² = 2572022642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (35863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 275 + ... + 383.

It is an arithmetic number, because the mean of its divisors is an integer number (5280).

2³⁵⁸⁶¹ is an apocalyptic number.

It is an amenable number.

35861 is a deficient number, since it is larger than the sum of its proper divisors (6379).

35861 is a wasteful number, since it uses less digits than its factorization.

35861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163.

The product of its digits is 720, while the sum is 23.

The square root of 35861 is about 189.3700081850. The cubic root of 35861 is about 32.9767206494.

It can be divided in two parts, 35 and 861, that multiplied together give a triangular number (30135 = T₂₄₅).

The spelling of 35861 in words is "thirty-five thousand, eight hundred sixty-one".