786980881 has 8 divisors (see below), whose sum is σ = 847398240. Its totient is φ = 728132928.

The previous prime is 786980879. The next prime is 786980891. The reversal of 786980881 is 188089687.

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 786980881 - 2¹ = 786980879 is a prime.

It is a super-2 number, since 2×786980881² = 1238677814119072322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (786980891) 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, 391311 + ... + 393316.

It is an arithmetic number, because the mean of its divisors is an integer number (105924780).

Almost surely, 2^786980881 is an apocalyptic number.

It is an amenable number.

786980881 is a deficient number, since it is larger than the sum of its proper divisors (60417359).

786980881 is a wasteful number, since it uses less digits than its factorization.

786980881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 784703.

The product of its (nonzero) digits is 1548288, while the sum is 55.

The square root of 786980881 is about 28053.1795167678. The cubic root of 786980881 is about 923.2544166443.

The spelling of 786980881 in words is "seven hundred eighty-six million, nine hundred eighty thousand, eight hundred eighty-one".