11897272 has 8 divisors (see below), whose sum is σ = 22307400. Its totient is φ = 5948632.

The previous prime is 11897267. The next prime is 11897299. The reversal of 11897272 is 27279811.

11897272 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 743572 + ... + 743587.

It is an arithmetic number, because the mean of its divisors is an integer number (2788425).

Almost surely, 2^11897272 is an apocalyptic number.

It is an amenable number.

11897272 is a deficient number, since it is larger than the sum of its proper divisors (10410128).

11897272 is a wasteful number, since it uses less digits than its factorization.

11897272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1487165 (or 1487161 counting only the distinct ones).

The product of its digits is 14112, while the sum is 37.

The square root of 11897272 is about 3449.2422356222. The cubic root of 11897272 is about 228.2876742252.

The spelling of 11897272 in words is "eleven million, eight hundred ninety-seven thousand, two hundred seventy-two".