40869877 has 4 divisors (see below), whose sum is σ = 41244940. Its totient is φ = 40494816.

The previous prime is 40869869. The next prime is 40869889. The reversal of 40869877 is 77896804.

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

It can be written as a sum of positive squares in 2 ways, for example, as 10850436 + 30019441 = 3294^2 + 5479^2 .

It is a cyclic number.

It is not a de Polignac number, because 40869877 - 2³ = 40869869 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40869877.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40869847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 187368 + ... + 187585.

It is an arithmetic number, because the mean of its divisors is an integer number (10311235).

Almost surely, 2^40869877 is an apocalyptic number.

It is an amenable number.

40869877 is a deficient number, since it is larger than the sum of its proper divisors (375063).

40869877 is a wasteful number, since it uses less digits than its factorization.

40869877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375062.

The product of its (nonzero) digits is 677376, while the sum is 49.

The square root of 40869877 is about 6392.9552634130. The cubic root of 40869877 is about 344.4565468943.

The spelling of 40869877 in words is "forty million, eight hundred sixty-nine thousand, eight hundred seventy-seven".