11870215 has 16 divisors (see below), whose sum is σ = 16361280. Its totient is φ = 8098560.

The previous prime is 11870207. The next prime is 11870219. The reversal of 11870215 is 51207811.

It is not a de Polignac number, because 11870215 - 2³ = 11870207 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11870215.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11870219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7275 + ... + 8755.

It is an arithmetic number, because the mean of its divisors is an integer number (1022580).

Almost surely, 2^11870215 is an apocalyptic number.

11870215 is a deficient number, since it is larger than the sum of its proper divisors (4491065).

11870215 is a wasteful number, since it uses less digits than its factorization.

11870215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1722.

The product of its (nonzero) digits is 560, while the sum is 25.

The square root of 11870215 is about 3445.3178372975. The cubic root of 11870215 is about 228.1144841590.

The spelling of 11870215 in words is "eleven million, eight hundred seventy thousand, two hundred fifteen".