77794379 has 8 divisors (see below), whose sum is σ = 88188240. Its totient is φ = 68030496.

The previous prime is 77794361. The next prime is 77794393. The reversal of 77794379 is 97349777.

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 77794379 - 2¹⁶ = 77728843 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 77794379.

It is not an unprimeable number, because it can be changed into a prime (77794319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157232 + ... + 157725.

It is an arithmetic number, because the mean of its divisors is an integer number (11023530).

Almost surely, 2^77794379 is an apocalyptic number.

77794379 is a deficient number, since it is larger than the sum of its proper divisors (10393861).

77794379 is a wasteful number, since it uses less digits than its factorization.

77794379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314989.

The product of its digits is 2333772, while the sum is 53.

The square root of 77794379 is about 8820.1121874951. The cubic root of 77794379 is about 426.8900897581.

The spelling of 77794379 in words is "seventy-seven million, seven hundred ninety-four thousand, three hundred seventy-nine".