11257878 has 16 divisors (see below), whose sum is σ = 22689216. Its totient is φ = 3723720.

The previous prime is 11257843. The next prime is 11257891. The reversal of 11257878 is 87875211.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6376 + ... + 7947.

It is an arithmetic number, because the mean of its divisors is an integer number (1418076).

Almost surely, 2^11257878 is an apocalyptic number.

11257878 is an abundant number, since it is smaller than the sum of its proper divisors (11431338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11257878 is a wasteful number, since it uses less digits than its factorization.

11257878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14459.

The product of its digits is 31360, while the sum is 39.

The square root of 11257878 is about 3355.2761436281. The cubic root of 11257878 is about 224.1225280967.

The spelling of 11257878 in words is "eleven million, two hundred fifty-seven thousand, eight hundred seventy-eight".