11798515 has 8 divisors (see below), whose sum is σ = 14267088. Its totient is φ = 9366240.

The previous prime is 11798513. The next prime is 11798519. The reversal of 11798515 is 51589711.

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

It is not a de Polignac number, because 11798515 - 2¹ = 11798513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11798513) 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 7 ways as a sum of consecutive naturals, for example, 8352 + ... + 9661.

It is an arithmetic number, because the mean of its divisors is an integer number (1783386).

Almost surely, 2^11798515 is an apocalyptic number.

11798515 is a deficient number, since it is larger than the sum of its proper divisors (2468573).

11798515 is a wasteful number, since it uses less digits than its factorization.

11798515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18149.

The product of its digits is 12600, while the sum is 37.

The square root of 11798515 is about 3434.8966505559. The cubic root of 11798515 is about 227.6542607916.

The spelling of 11798515 in words is "eleven million, seven hundred ninety-eight thousand, five hundred fifteen".