11897413 has 4 divisors (see below), whose sum is σ = 12979008. Its totient is φ = 10815820.

The previous prime is 11897411. The next prime is 11897419. The reversal of 11897413 is 31479811.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31479811 = 11 ⋅2861801.

It is a cyclic number.

It is not a de Polignac number, because 11897413 - 2¹ = 11897411 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 (11897411) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 540781 + ... + 540802.

It is an arithmetic number, because the mean of its divisors is an integer number (3244752).

Almost surely, 2^11897413 is an apocalyptic number.

It is an amenable number.

11897413 is a deficient number, since it is larger than the sum of its proper divisors (1081595).

11897413 is a wasteful number, since it uses less digits than its factorization.

11897413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1081594.

The product of its digits is 6048, while the sum is 34.

The square root of 11897413 is about 3449.2626748336. The cubic root of 11897413 is about 228.2885760688.

The spelling of 11897413 in words is "eleven million, eight hundred ninety-seven thousand, four hundred thirteen".