1604471913 has 24 divisors (see below), whose sum is σ = 2532198240. Its totient is φ = 970892160.

The previous prime is 1604471903. The next prime is 1604471923. The reversal of 1604471913 is 3191744061.

1604471913 is a `hidden beast` number, since 1 + 604 + 47 + 1 + 9 + 1 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (1604471903) and next prime (1604471923).

It is not a de Polignac number, because 1604471913 - 2¹² = 1604467817 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1604471903) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 52945 + ... + 77537.

It is an arithmetic number, because the mean of its divisors is an integer number (105508260).

Almost surely, 2^1604471913 is an apocalyptic number.

It is an amenable number.

1604471913 is a deficient number, since it is larger than the sum of its proper divisors (927726327).

1604471913 is a wasteful number, since it uses less digits than its factorization.

1604471913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25269 (or 25266 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 1604471913 is about 40055.8599083829. The cubic root of 1604471913 is about 1170.6957444205.

The spelling of 1604471913 in words is "one billion, six hundred four million, four hundred seventy-one thousand, nine hundred thirteen".