1604470669 has 2 divisors, whose sum is σ = 1604470670. Its totient is φ = 1604470668.

The previous prime is 1604470667. The next prime is 1604470697. The reversal of 1604470669 is 9660744061.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1413008100 + 191462569 = 37590^2 + 13837^2 .

It is a cyclic number.

It is not a de Polignac number, because 1604470669 - 2¹ = 1604470667 is a prime.

It is a super-2 number, since 2×1604470669² = 5148652255362615122, which contains 22 as substring.

Together with 1604470667, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1604470661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 802235334 + 802235335.

It is an arithmetic number, because the mean of its divisors is an integer number (802235335).

Almost surely, 2^1604470669 is an apocalyptic number.

It is an amenable number.

1604470669 is a deficient number, since it is larger than the sum of its proper divisors (1).

1604470669 is an equidigital number, since it uses as much as digits as its factorization.

1604470669 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 217728, while the sum is 43.

The square root of 1604470669 is about 40055.8443800652. The cubic root of 1604470669 is about 1170.6954418607.

The spelling of 1604470669 in words is "one billion, six hundred four million, four hundred seventy thousand, six hundred sixty-nine".