11640998 has 4 divisors (see below), whose sum is σ = 17461500. Its totient is φ = 5820498.

The previous prime is 11640989. The next prime is 11641001. The reversal of 11640998 is 89904611.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2910248 + ... + 2910251.

It is an arithmetic number, because the mean of its divisors is an integer number (4365375).

Almost surely, 2^11640998 is an apocalyptic number.

11640998 is a deficient number, since it is larger than the sum of its proper divisors (5820502).

11640998 is an equidigital number, since it uses as much as digits as its factorization.

11640998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5820501.

The product of its (nonzero) digits is 15552, while the sum is 38.

The square root of 11640998 is about 3411.8906782018. The cubic root of 11640998 is about 226.6366131819.

It can be divided in two parts, 116 and 40998, that added together give a palindrome (41114).

The spelling of 11640998 in words is "eleven million, six hundred forty thousand, nine hundred ninety-eight".