385780079 has 4 divisors (see below), whose sum is σ = 389194176. Its totient is φ = 382365984.

The previous prime is 385780061. The next prime is 385780117. The reversal of 385780079 is 970087583.

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 385780079 - 2¹² = 385775983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385780039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1706879 + ... + 1707104.

It is an arithmetic number, because the mean of its divisors is an integer number (97298544).

Almost surely, 2^385780079 is an apocalyptic number.

385780079 is a deficient number, since it is larger than the sum of its proper divisors (3414097).

385780079 is a wasteful number, since it uses less digits than its factorization.

385780079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3414096.

The product of its (nonzero) digits is 423360, while the sum is 47.

The square root of 385780079 is about 19641.2850648831. The cubic root of 385780079 is about 727.9696374398.

The spelling of 385780079 in words is "three hundred eighty-five million, seven hundred eighty thousand, seventy-nine".