40789879 has 8 divisors (see below), whose sum is σ = 45837792. Its totient is φ = 36014880.

The previous prime is 40789877. The next prime is 40789901. The reversal of 40789879 is 97898704.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40789879 - 2¹ = 40789877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40789877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67912 + ... + 68509.

It is an arithmetic number, because the mean of its divisors is an integer number (5729724).

Almost surely, 2^40789879 is an apocalyptic number.

40789879 is a deficient number, since it is larger than the sum of its proper divisors (5047913).

40789879 is a wasteful number, since it uses less digits than its factorization.

40789879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136457.

The product of its (nonzero) digits is 1016064, while the sum is 52.

The square root of 40789879 is about 6386.6954679239. The cubic root of 40789879 is about 344.2316556415.

The spelling of 40789879 in words is "forty million, seven hundred eighty-nine thousand, eight hundred seventy-nine".