779940133 has 4 divisors (see below), whose sum is σ = 891360160. Its totient is φ = 668520108.

The previous prime is 779940113. The next prime is 779940151. The reversal of 779940133 is 331049977.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 779940133 - 2⁹ = 779939621 is a prime.

It is a super-2 number, since 2×779940133² = 1216613222128115378, which contains 22 as substring.

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 779940133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (779940113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55710003 + ... + 55710016.

It is an arithmetic number, because the mean of its divisors is an integer number (222840040).

Almost surely, 2^779940133 is an apocalyptic number.

It is an amenable number.

779940133 is a deficient number, since it is larger than the sum of its proper divisors (111420027).

779940133 is a wasteful number, since it uses less digits than its factorization.

779940133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111420026.

The product of its (nonzero) digits is 142884, while the sum is 43.

The square root of 779940133 is about 27927.4082757423. The cubic root of 779940133 is about 920.4928569842.

The spelling of 779940133 in words is "seven hundred seventy-nine million, nine hundred forty thousand, one hundred thirty-three".