11728898 has 4 divisors (see below), whose sum is σ = 17593350. Its totient is φ = 5864448.

The previous prime is 11728891. The next prime is 11728903. The reversal of 11728898 is 89882711.

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

It can be written as a sum of positive squares in only one way, i.e., 8427409 + 3301489 = 2903^2 + 1817^2 .

It is not an unprimeable number, because it can be changed into a prime (11728891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2932223 + ... + 2932226.

Almost surely, 2^11728898 is an apocalyptic number.

11728898 is a deficient number, since it is larger than the sum of its proper divisors (5864452).

11728898 is an equidigital number, since it uses as much as digits as its factorization.

11728898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5864451.

The product of its digits is 64512, while the sum is 44.

The square root of 11728898 is about 3424.7478739317. The cubic root of 11728898 is about 227.2056201289.

The spelling of 11728898 in words is "eleven million, seven hundred twenty-eight thousand, eight hundred ninety-eight".