40987727 has 4 divisors (see below), whose sum is σ = 44713896. Its totient is φ = 37261560.

The previous prime is 40987711. The next prime is 40987733. The reversal of 40987727 is 72778904.

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 40987727 - 2⁴ = 40987711 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 (40987777) 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, 1863068 + ... + 1863089.

It is an arithmetic number, because the mean of its divisors is an integer number (11178474).

Almost surely, 2^40987727 is an apocalyptic number.

40987727 is a deficient number, since it is larger than the sum of its proper divisors (3726169).

40987727 is a wasteful number, since it uses less digits than its factorization.

40987727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3726168.

The product of its (nonzero) digits is 197568, while the sum is 44.

The square root of 40987727 is about 6402.1658054130. The cubic root of 40987727 is about 344.7873141248.

It can be divided in two parts, 409877 and 27, that added together give a palindrome (409904).

The spelling of 40987727 in words is "forty million, nine hundred eighty-seven thousand, seven hundred twenty-seven".