77944382 has 8 divisors (see below), whose sum is σ = 117226200. Its totient is φ = 38868984.

The previous prime is 77944381. The next prime is 77944417. The reversal of 77944382 is 28344977.

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 (77944381) 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, 50657 + ... + 52172.

It is an arithmetic number, because the mean of its divisors is an integer number (14653275).

Almost surely, 2^77944382 is an apocalyptic number.

77944382 is a deficient number, since it is larger than the sum of its proper divisors (39281818).

77944382 is a wasteful number, since it uses less digits than its factorization.

77944382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103210.

The product of its digits is 338688, while the sum is 44.

The square root of 77944382 is about 8828.6115556185. The cubic root of 77944382 is about 427.1642898641.

The spelling of 77944382 in words is "seventy-seven million, nine hundred forty-four thousand, three hundred eighty-two".