11897725 has 12 divisors (see below), whose sum is σ = 16861024. Its totient is φ = 8158320.

The previous prime is 11897723. The next prime is 11897747. The reversal of 11897725 is 52779811.

It is not a de Polignac number, because 11897725 - 2¹ = 11897723 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11897723) 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, 33819 + ... + 34168.

Almost surely, 2^11897725 is an apocalyptic number.

It is an amenable number.

11897725 is a deficient number, since it is larger than the sum of its proper divisors (4963299).

11897725 is an equidigital number, since it uses as much as digits as its factorization.

11897725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68004 (or 67999 counting only the distinct ones).

The product of its digits is 35280, while the sum is 40.

The square root of 11897725 is about 3449.3079015942. The cubic root of 11897725 is about 228.2905716122.

The spelling of 11897725 in words is "eleven million, eight hundred ninety-seven thousand, seven hundred twenty-five".