1604896311 has 8 divisors (see below), whose sum is σ = 2149046640. Its totient is φ = 1065338432.

The previous prime is 1604896291. The next prime is 1604896343. The reversal of 1604896311 is 1136984061.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1604896311 - 2⁶ = 1604896247 is a prime.

It is a super-2 number, since 2×1604896311² = 5151384338122817442, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1604896311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1604896211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1147296 + ... + 1148693.

It is an arithmetic number, because the mean of its divisors is an integer number (268630830).

Almost surely, 2^1604896311 is an apocalyptic number.

1604896311 is a deficient number, since it is larger than the sum of its proper divisors (544150329).

1604896311 is a wasteful number, since it uses less digits than its factorization.

1604896311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2296225.

The product of its (nonzero) digits is 31104, while the sum is 39.

The square root of 1604896311 is about 40061.1571350604. The cubic root of 1604896311 is about 1170.7989553542.

The spelling of 1604896311 in words is "one billion, six hundred four million, eight hundred ninety-six thousand, three hundred eleven".