11871725 has 12 divisors (see below), whose sum is σ = 14909760. Its totient is φ = 9375600.

The previous prime is 11871721. The next prime is 11871731. The reversal of 11871725 is 52717811.

It is not a de Polignac number, because 11871725 - 2² = 11871721 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11871691 and 11871700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11871721) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1031 + ... + 4980.

It is an arithmetic number, because the mean of its divisors is an integer number (1242480).

Almost surely, 2^11871725 is an apocalyptic number.

It is an amenable number.

11871725 is a deficient number, since it is larger than the sum of its proper divisors (3038035).

11871725 is an equidigital number, since it uses as much as digits as its factorization.

11871725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6100 (or 6095 counting only the distinct ones).

The product of its digits is 3920, while the sum is 32.

The square root of 11871725 is about 3445.5369683113. The cubic root of 11871725 is about 228.1241564990.

The spelling of 11871725 in words is "eleven million, eight hundred seventy-one thousand, seven hundred twenty-five".