780885049 has 8 divisors (see below), whose sum is σ = 893687040. Its totient is φ = 668394816.

The previous prime is 780885023. The next prime is 780885097. The reversal of 780885049 is 940588087.

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 780885049 - 2¹¹ = 780883001 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 780884993 and 780885011.

It is not an unprimeable number, because it can be changed into a prime (780885449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72544 + ... + 82609.

It is an arithmetic number, because the mean of its divisors is an integer number (111710880).

Almost surely, 2^780885049 is an apocalyptic number.

It is an amenable number.

780885049 is a deficient number, since it is larger than the sum of its proper divisors (112801991).

780885049 is a wasteful number, since it uses less digits than its factorization.

780885049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155879.

The product of its (nonzero) digits is 645120, while the sum is 49.

The square root of 780885049 is about 27944.3205141939. The cubic root of 780885049 is about 920.8644399521.

The spelling of 780885049 in words is "seven hundred eighty million, eight hundred eighty-five thousand, forty-nine".