19996475 has 6 divisors (see below), whose sum is σ = 24795660. Its totient is φ = 15997160.

The previous prime is 19996469. The next prime is 19996489. The reversal of 19996475 is 57469991.

It is not a de Polignac number, because 19996475 - 2⁶ = 19996411 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 399905 + ... + 399954.

It is an arithmetic number, because the mean of its divisors is an integer number (4132610).

Almost surely, 2^19996475 is an apocalyptic number.

19996475 is a deficient number, since it is larger than the sum of its proper divisors (4799185).

19996475 is an equidigital number, since it uses as much as digits as its factorization.

19996475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 799869 (or 799864 counting only the distinct ones).

The product of its digits is 612360, while the sum is 50.

The square root of 19996475 is about 4471.7418306517. The cubic root of 19996475 is about 271.4258135190.

The spelling of 19996475 in words is "nineteen million, nine hundred ninety-six thousand, four hundred seventy-five".