40711 has 4 divisors (see below), whose sum is σ = 44424. Its totient is φ = 37000.

The previous prime is 40709. The next prime is 40739. The reversal of 40711 is 11704.

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

It is a cyclic number.

It is not a de Polignac number, because 40711 - 2¹ = 40709 is a prime.

It is a Smith number, since the sum of its digits (13) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40691 and 40700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40751) 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, 1840 + ... + 1861.

It is an arithmetic number, because the mean of its divisors is an integer number (11106).

2⁴⁰⁷¹¹ is an apocalyptic number.

40711 is a deficient number, since it is larger than the sum of its proper divisors (3713).

40711 is a wasteful number, since it uses less digits than its factorization.

40711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3712.

The product of its (nonzero) digits is 28, while the sum is 13.

The square root of 40711 is about 201.7696706643. The cubic root of 40711 is about 34.4009622049.

The spelling of 40711 in words is "forty thousand, seven hundred eleven", and thus it is an iban number.