877779089 has 8 divisors (see below), whose sum is σ = 960988320. Its totient is φ = 795138400.

The previous prime is 877779079. The next prime is 877779103. The reversal of 877779089 is 980977778.

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 877779089 - 2¹² = 877774993 is a prime.

It is a super-2 number, since 2×877779089² = 1540992258171339842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (877779059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138899 + ... + 145080.

It is an arithmetic number, because the mean of its divisors is an integer number (120123540).

Almost surely, 2^877779089 is an apocalyptic number.

It is an amenable number.

877779089 is a deficient number, since it is larger than the sum of its proper divisors (83209231).

877779089 is a wasteful number, since it uses less digits than its factorization.

877779089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284271.

The product of its (nonzero) digits is 12446784, while the sum is 62.

The square root of 877779089 is about 29627.3368529809. The cubic root of 877779089 is about 957.4771318905.

The spelling of 877779089 in words is "eight hundred seventy-seven million, seven hundred seventy-nine thousand, eighty-nine".