780914849 has 8 divisors (see below), whose sum is σ = 917438592. Its totient is φ = 655313040.

The previous prime is 780914843. The next prime is 780914857. The reversal of 780914849 is 948419087.

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 780914849 - 2¹⁶ = 780849313 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 780914797 and 780914806.

It is not an unprimeable number, because it can be changed into a prime (780914843) 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, 2730329 + ... + 2730614.

It is an arithmetic number, because the mean of its divisors is an integer number (114679824).

Almost surely, 2^780914849 is an apocalyptic number.

It is an amenable number.

780914849 is a deficient number, since it is larger than the sum of its proper divisors (136523743).

780914849 is a wasteful number, since it uses less digits than its factorization.

780914849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5460967.

The product of its (nonzero) digits is 580608, while the sum is 50.

The square root of 780914849 is about 27944.8537122670. The cubic root of 780914849 is about 920.8761537595.

The spelling of 780914849 in words is "seven hundred eighty million, nine hundred fourteen thousand, eight hundred forty-nine".