19895413 has 4 divisors (see below), whose sum is σ = 20942560. Its totient is φ = 18848268.

The previous prime is 19895383. The next prime is 19895419. The reversal of 19895413 is 31459891.

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.

It is a cyclic number.

It is not a de Polignac number, because 19895413 - 2¹³ = 19887221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19895419) 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, 523545 + ... + 523582.

It is an arithmetic number, because the mean of its divisors is an integer number (5235640).

Almost surely, 2^19895413 is an apocalyptic number.

It is an amenable number.

19895413 is a deficient number, since it is larger than the sum of its proper divisors (1047147).

19895413 is a wasteful number, since it uses less digits than its factorization.

19895413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1047146.

The product of its digits is 38880, while the sum is 40.

The square root of 19895413 is about 4460.4274458845. The cubic root of 19895413 is about 270.9677798325.

The spelling of 19895413 in words is "nineteen million, eight hundred ninety-five thousand, four hundred thirteen".