11611995 has 8 divisors (see below), whose sum is σ = 18579216. Its totient is φ = 6193056.

The previous prime is 11611981. The next prime is 11612047. The reversal of 11611995 is 59911611.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11611995 - 2⁶ = 11611931 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 387052 + ... + 387081.

It is an arithmetic number, because the mean of its divisors is an integer number (2322402).

Almost surely, 2^11611995 is an apocalyptic number.

11611995 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11611995 is a deficient number, since it is larger than the sum of its proper divisors (6967221).

11611995 is an equidigital number, since it uses as much as digits as its factorization.

11611995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 774141.

The product of its digits is 2430, while the sum is 33.

The square root of 11611995 is about 3407.6377448315. The cubic root of 11611995 is about 226.4482384924.

The spelling of 11611995 in words is "eleven million, six hundred eleven thousand, nine hundred ninety-five".