11777085 has 12 divisors (see below), whose sum is σ = 20413692. Its totient is φ = 6281088.

The previous prime is 11777071. The next prime is 11777099. The reversal of 11777085 is 58077711.

It is an interprime number because it is at equal distance from previous prime (11777071) and next prime (11777099).

It can be written as a sum of positive squares in 2 ways, for example, as 3790809 + 7986276 = 1947^2 + 2826^2 .

It is not a de Polignac number, because 11777085 - 2⁴ = 11777069 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 130812 + ... + 130901.

It is an arithmetic number, because the mean of its divisors is an integer number (1701141).

Almost surely, 2^11777085 is an apocalyptic number.

11777085 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11777085 is a deficient number, since it is larger than the sum of its proper divisors (8636607).

11777085 is a wasteful number, since it uses less digits than its factorization.

11777085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261724 (or 261721 counting only the distinct ones).

The product of its (nonzero) digits is 13720, while the sum is 36.

The square root of 11777085 is about 3431.7757793889. The cubic root of 11777085 is about 227.5163454826.

It can be divided in two parts, 117770 and 85, that added together give a triangular number (117855 = T₄₈₅).

The spelling of 11777085 in words is "eleven million, seven hundred seventy-seven thousand, eighty-five".