19872413 has 16 divisors (see below), whose sum is σ = 22438080. Its totient is φ = 17443200.

The previous prime is 19872389. The next prime is 19872421. The reversal of 19872413 is 31427891.

It is a cyclic number.

It is not a de Polignac number, because 19872413 - 2²² = 15678109 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 (19872443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62531 + ... + 62847.

It is an arithmetic number, because the mean of its divisors is an integer number (1402380).

Almost surely, 2^19872413 is an apocalyptic number.

It is an amenable number.

19872413 is a deficient number, since it is larger than the sum of its proper divisors (2565667).

19872413 is a wasteful number, since it uses less digits than its factorization.

19872413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508.

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

The square root of 19872413 is about 4457.8484720771. The cubic root of 19872413 is about 270.8633225543.

The spelling of 19872413 in words is "nineteen million, eight hundred seventy-two thousand, four hundred thirteen".