45986 has 4 divisors (see below), whose sum is σ = 68982. Its totient is φ = 22992.

The previous prime is 45979. The next prime is 45989. The reversal of 45986 is 68954.

45986 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 32761 + 13225 = 181^2 + 115^2 .

It is a super-2 number, since 2×45986² = 4229424392, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (45989) by changing a digit.

45986 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 as a sum of consecutive naturals, namely, 11495 + ... + 11498.

2⁴⁵⁹⁸⁶ is an apocalyptic number.

45986 is a deficient number, since it is larger than the sum of its proper divisors (22996).

45986 is a wasteful number, since it uses less digits than its factorization.

45986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22995.

The product of its digits is 8640, while the sum is 32.

The square root of 45986 is about 214.4434657433. The cubic root of 45986 is about 35.8268433652.

Subtracting from 45986 its sum of digits (32), we obtain a palindrome (45954).

It can be divided in two parts, 459 and 86, that added together give a palindrome (545).

The spelling of 45986 in words is "forty-five thousand, nine hundred eighty-six".