11677778 has 32 divisors (see below), whose sum is σ = 21168000. Its totient is φ = 4823952.

The previous prime is 11677769. The next prime is 11677789. The reversal of 11677778 is 87777611.

It is a plaindrome in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19601 + ... + 20187.

It is an arithmetic number, because the mean of its divisors is an integer number (661500).

Almost surely, 2^11677778 is an apocalyptic number.

11677778 is a deficient number, since it is larger than the sum of its proper divisors (9490222).

11677778 is an equidigital number, since it uses as much as digits as its factorization.

11677778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 639 (or 625 counting only the distinct ones).

The product of its digits is 115248, while the sum is 44.

The square root of 11677778 is about 3417.2764008783. The cubic root of 11677778 is about 226.8750501003.

The spelling of 11677778 in words is "eleven million, six hundred seventy-seven thousand, seven hundred seventy-eight".