77882942 has 8 divisors (see below), whose sum is σ = 116863032. Its totient is φ = 38928600.

The previous prime is 77882929. The next prime is 77882947. The reversal of 77882942 is 24928877.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77882947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5717 + ... + 13727.

It is an arithmetic number, because the mean of its divisors is an integer number (14607879).

Almost surely, 2^77882942 is an apocalyptic number.

77882942 is a deficient number, since it is larger than the sum of its proper divisors (38980090).

77882942 is a wasteful number, since it uses less digits than its factorization.

77882942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12874.

The product of its digits is 451584, while the sum is 47.

The square root of 77882942 is about 8825.1312738112. The cubic root of 77882942 is about 427.0520223206.

The spelling of 77882942 in words is "seventy-seven million, eight hundred eighty-two thousand, nine hundred forty-two".