11780895 has 16 divisors (see below), whose sum is σ = 21542400. Its totient is φ = 5385504.

The previous prime is 11780887. The next prime is 11780897. The reversal of 11780895 is 59808711.

It is not a de Polignac number, because 11780895 - 2³ = 11780887 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11780897) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55995 + ... + 56204.

It is an arithmetic number, because the mean of its divisors is an integer number (1346400).

Almost surely, 2^11780895 is an apocalyptic number.

11780895 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11780895 is a deficient number, since it is larger than the sum of its proper divisors (9761505).

11780895 is a wasteful number, since it uses less digits than its factorization.

11780895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112214.

The product of its (nonzero) digits is 20160, while the sum is 39.

The square root of 11780895 is about 3432.3308406970. The cubic root of 11780895 is about 227.5408774109.

The spelling of 11780895 in words is "eleven million, seven hundred eighty thousand, eight hundred ninety-five".