11897432 has 8 divisors (see below), whose sum is σ = 22307700. Its totient is φ = 5948712.

The previous prime is 11897423. The next prime is 11897449. The reversal of 11897432 is 23479811.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 11897392 and 11897401.

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 as a sum of consecutive naturals, namely, 743582 + ... + 743597.

Almost surely, 2^11897432 is an apocalyptic number.

It is an amenable number.

11897432 is a deficient number, since it is larger than the sum of its proper divisors (10410268).

11897432 is a wasteful number, since it uses less digits than its factorization.

11897432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1487185 (or 1487181 counting only the distinct ones).

The product of its digits is 12096, while the sum is 35.

The square root of 11897432 is about 3449.2654290443. The cubic root of 11897432 is about 228.2886975933.

The spelling of 11897432 in words is "eleven million, eight hundred ninety-seven thousand, four hundred thirty-two".