40867 has 2 divisors, whose sum is σ = 40868. Its totient is φ = 40866.

The previous prime is 40853. The next prime is 40879. The reversal of 40867 is 76804.

40867 is nontrivially palindromic in base 11.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40867 - 2⁷ = 40739 is a prime.

It is a super-2 number, since 2×40867² = 3340223378, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20433 + 20434.

It is an arithmetic number, because the mean of its divisors is an integer number (20434).

2⁴⁰⁸⁶⁷ is an apocalyptic number.

40867 is a deficient number, since it is larger than the sum of its proper divisors (1).

40867 is an equidigital number, since it uses as much as digits as its factorization.

40867 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 40867 is about 202.1558804487. The cubic root of 40867 is about 34.4448464130. Note that the first 3 decimals are identical.

Subtracting 40867 from its reverse (76804), we obtain a cube (35937 = 33³).

The spelling of 40867 in words is "forty thousand, eight hundred sixty-seven".