789420079 has 4 divisors (see below), whose sum is σ = 902194384. Its totient is φ = 676645776.

The previous prime is 789420013. The next prime is 789420089. The reversal of 789420079 is 970024987.

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 789420079 - 2⁷ = 789419951 is a prime.

It is a super-3 number, since 3×789420079³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (789420089) 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, 56387142 + ... + 56387155.

It is an arithmetic number, because the mean of its divisors is an integer number (225548596).

Almost surely, 2^789420079 is an apocalyptic number.

789420079 is a deficient number, since it is larger than the sum of its proper divisors (112774305).

789420079 is a wasteful number, since it uses less digits than its factorization.

789420079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112774304.

The product of its (nonzero) digits is 254016, while the sum is 46.

The square root of 789420079 is about 28096.6204195451. The cubic root of 789420079 is about 924.2072892974.

The spelling of 789420079 in words is "seven hundred eighty-nine million, four hundred twenty thousand, seventy-nine".