780880867 has 8 divisors (see below), whose sum is σ = 885209360. Its totient is φ = 682875360.

The previous prime is 780880787. The next prime is 780880909. The reversal of 780880867 is 768088087.

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 780880867 - 2⁷ = 780880739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (780880367) 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 7 ways as a sum of consecutive naturals, for example, 1580484 + ... + 1580977.

It is an arithmetic number, because the mean of its divisors is an integer number (110651170).

Almost surely, 2^780880867 is an apocalyptic number.

780880867 is a deficient number, since it is larger than the sum of its proper divisors (104328493).

780880867 is a wasteful number, since it uses less digits than its factorization.

780880867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3161493.

The product of its (nonzero) digits is 1204224, while the sum is 52.

The square root of 780880867 is about 27944.2456867241. The cubic root of 780880867 is about 920.8627960644.

The spelling of 780880867 in words is "seven hundred eighty million, eight hundred eighty thousand, eight hundred sixty-seven".