780850469 has 4 divisors (see below), whose sum is σ = 892400544. Its totient is φ = 669300396.

The previous prime is 780850439. The next prime is 780850481. The reversal of 780850469 is 964058087.

780850469 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 a de Polignac number, because none of the positive numbers 2^k-780850469 is a prime.

It is a super-2 number, since 2×780850469² = 1219454909875039922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (780850439) 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, 55775027 + ... + 55775040.

It is an arithmetic number, because the mean of its divisors is an integer number (223100136).

Almost surely, 2^780850469 is an apocalyptic number.

It is an amenable number.

780850469 is a deficient number, since it is larger than the sum of its proper divisors (111550075).

780850469 is a wasteful number, since it uses less digits than its factorization.

780850469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111550074.

The product of its (nonzero) digits is 483840, while the sum is 47.

The square root of 780850469 is about 27943.7017769658. The cubic root of 780850469 is about 920.8508468449.

The spelling of 780850469 in words is "seven hundred eighty million, eight hundred fifty thousand, four hundred sixty-nine".