1604751087 has 16 divisors (see below), whose sum is σ = 2198956032. Its totient is φ = 1040228640.

The previous prime is 1604751059. The next prime is 1604751139. The reversal of 1604751087 is 7801574061.

It is not a de Polignac number, because 1604751087 - 2¹⁵ = 1604718319 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1604751037) 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, 203818 + ... + 211544.

It is an arithmetic number, because the mean of its divisors is an integer number (137434752).

Almost surely, 2^1604751087 is an apocalyptic number.

1604751087 is a deficient number, since it is larger than the sum of its proper divisors (594204945).

1604751087 is a wasteful number, since it uses less digits than its factorization.

1604751087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9638.

The product of its (nonzero) digits is 47040, while the sum is 39.

The square root of 1604751087 is about 40059.3445652821. The cubic root of 1604751087 is about 1170.7636398356.

The spelling of 1604751087 in words is "one billion, six hundred four million, seven hundred fifty-one thousand, eighty-seven".