847716560 has 40 divisors (see below), whose sum is σ = 2086882056. Its totient is φ = 319139840.

The previous prime is 847716557. The next prime is 847716563. The reversal of 847716560 is 65617748.

It is an interprime number because it is at equal distance from previous prime (847716557) and next prime (847716563).

It can be written as a sum of positive squares in 4 ways, for example, as 26091664 + 821624896 = 5108^2 + 28664^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (847716563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 310301 + ... + 313020.

Almost surely, 2^847716560 is an apocalyptic number.

847716560 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

847716560 is an abundant number, since it is smaller than the sum of its proper divisors (1239165496).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

847716560 is a wasteful number, since it uses less digits than its factorization.

847716560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623351 (or 623345 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 44.

The square root of 847716560 is about 29115.5724656068. The cubic root of 847716560 is about 946.4192293424.

The spelling of 847716560 in words is "eight hundred forty-seven million, seven hundred sixteen thousand, five hundred sixty".