11898513 has 24 divisors (see below), whose sum is σ = 19358976. Its totient is φ = 6976800.

The previous prime is 11898479. The next prime is 11898517. The reversal of 11898513 is 31589811.

11898513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11898513 - 2⁶ = 11898449 is a prime.

It is a super-2 number, since 2×11898513² = 283149223222338, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11898517) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1131 + ... + 5007.

It is an arithmetic number, because the mean of its divisors is an integer number (806624).

Almost surely, 2^11898513 is an apocalyptic number.

It is an amenable number.

11898513 is a deficient number, since it is larger than the sum of its proper divisors (7460463).

11898513 is a wasteful number, since it uses less digits than its factorization.

11898513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3925 (or 3922 counting only the distinct ones).

The product of its digits is 8640, while the sum is 36.

The square root of 11898513 is about 3449.4221255161. The cubic root of 11898513 is about 228.2956114833.

The spelling of 11898513 in words is "eleven million, eight hundred ninety-eight thousand, five hundred thirteen".