11397471 has 4 divisors (see below), whose sum is σ = 15196632. Its totient is φ = 7598312.

The previous prime is 11397469. The next prime is 11397487. The reversal of 11397471 is 17479311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17479311 = 3 ⋅5826437.

It is a cyclic number.

It is not a de Polignac number, because 11397471 - 2¹ = 11397469 is a prime.

It is a super-3 number, since 3×11397471³ (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11397431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1899576 + ... + 1899581.

It is an arithmetic number, because the mean of its divisors is an integer number (3799158).

Almost surely, 2^11397471 is an apocalyptic number.

11397471 is a deficient number, since it is larger than the sum of its proper divisors (3799161).

11397471 is an equidigital number, since it uses as much as digits as its factorization.

11397471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3799160.

The product of its digits is 5292, while the sum is 33.

The square root of 11397471 is about 3376.0140698759. The cubic root of 11397471 is about 225.0450675156.

The spelling of 11397471 in words is "eleven million, three hundred ninety-seven thousand, four hundred seventy-one".