1059643685 has 16 divisors (see below), whose sum is σ = 1284432240. Its totient is φ = 839185920.

The previous prime is 1059643667. The next prime is 1059643687. The reversal of 1059643685 is 5863469501.

It is a happy number.

1059643685 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 238362721 + 821280964 = 15439^2 + 28658^2 .

It is not a de Polignac number, because 1059643685 - 2¹⁴ = 1059627301 is a prime.

It is a super-2 number, since 2×1059643685² = 2245689478320758450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1059643687) 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, 204689 + ... + 209801.

It is an arithmetic number, because the mean of its divisors is an integer number (80277015).

Almost surely, 2^1059643685 is an apocalyptic number.

It is an amenable number.

1059643685 is a deficient number, since it is larger than the sum of its proper divisors (224788555).

1059643685 is a wasteful number, since it uses less digits than its factorization.

1059643685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5528.

The product of its (nonzero) digits is 777600, while the sum is 47.

The square root of 1059643685 is about 32552.1686681548. The cubic root of 1059643685 is about 1019.4985632844.

The spelling of 1059643685 in words is "one billion, fifty-nine million, six hundred forty-three thousand, six hundred eighty-five".