77379 has 4 divisors (see below), whose sum is σ = 103176. Its totient is φ = 51584.

The previous prime is 77377. The next prime is 77383. The reversal of 77379 is 97377.

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

It is a cyclic number.

It is not a de Polignac number, because 77379 - 2¹ = 77377 is a prime.

It is a D-number.

77379 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (77377) 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, 12894 + ... + 12899.

It is an arithmetic number, because the mean of its divisors is an integer number (25794).

2⁷⁷³⁷⁹ is an apocalyptic number.

77379 is a deficient number, since it is larger than the sum of its proper divisors (25797).

77379 is a wasteful number, since it uses less digits than its factorization.

77379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25796.

The product of its digits is 9261, while the sum is 33.

The square root of 77379 is about 278.1708108339. The cubic root of 77379 is about 42.6128947717.

The spelling of 77379 in words is "seventy-seven thousand, three hundred seventy-nine".