77575982 has 8 divisors (see below), whose sum is σ = 126942552. Its totient is φ = 35261800.

The previous prime is 77575943. The next prime is 77575997. The reversal of 77575982 is 28957577.

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

It is a self number, because there is not a number n which added to its sum of digits gives 77575982.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1763069 + ... + 1763112.

It is an arithmetic number, because the mean of its divisors is an integer number (15867819).

Almost surely, 2^77575982 is an apocalyptic number.

77575982 is a deficient number, since it is larger than the sum of its proper divisors (49366570).

77575982 is a wasteful number, since it uses less digits than its factorization.

77575982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3526194.

The product of its digits is 1234800, while the sum is 50.

The square root of 77575982 is about 8807.7228612167. The cubic root of 77575982 is about 426.4902369781.

The spelling of 77575982 in words is "seventy-seven million, five hundred seventy-five thousand, nine hundred eighty-two".