11878237 has 6 divisors (see below), whose sum is σ = 13817598. Its totient is φ = 10181304.

The previous prime is 11878219. The next prime is 11878247. The reversal of 11878237 is 73287811.

It can be written as a sum of positive squares in only one way, i.e., 11148921 + 729316 = 3339^2 + 854^2 .

It is not a de Polignac number, because 11878237 - 2⁷ = 11878109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11878196 and 11878205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11878247) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 121158 + ... + 121255.

It is an arithmetic number, because the mean of its divisors is an integer number (2302933).

Almost surely, 2^11878237 is an apocalyptic number.

It is an amenable number.

11878237 is a deficient number, since it is larger than the sum of its proper divisors (1939361).

11878237 is an equidigital number, since it uses as much as digits as its factorization.

11878237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242427 (or 242420 counting only the distinct ones).

The product of its digits is 18816, while the sum is 37.

The square root of 11878237 is about 3446.4818293442. The cubic root of 11878237 is about 228.1658598732.

It can be divided in two parts, 118782 and 37, that multiplied together give a palindrome (4394934).

The spelling of 11878237 in words is "eleven million, eight hundred seventy-eight thousand, two hundred thirty-seven".