11898413 has 4 divisors (see below), whose sum is σ = 11914140. Its totient is φ = 11882688.

The previous prime is 11898373. The next prime is 11898431. The reversal of 11898413 is 31489811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31489811 = 2521 ⋅12491.

It can be written as a sum of positive squares in 2 ways, for example, as 8219689 + 3678724 = 2867^2 + 1918^2 .

It is a cyclic number.

It is not a de Polignac number, because 11898413 - 2⁸ = 11898157 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11898433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6668 + ... + 8261.

It is an arithmetic number, because the mean of its divisors is an integer number (2978535).

Almost surely, 2^11898413 is an apocalyptic number.

It is an amenable number.

11898413 is a deficient number, since it is larger than the sum of its proper divisors (15727).

11898413 is an equidigital number, since it uses as much as digits as its factorization.

11898413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15726.

The product of its digits is 6912, while the sum is 35.

The square root of 11898413 is about 3449.4076303041. The cubic root of 11898413 is about 228.2949719181.

The spelling of 11898413 in words is "eleven million, eight hundred ninety-eight thousand, four hundred thirteen".