687086322 has 64 divisors (see below), whose sum is σ = 1568219520. Its totient is φ = 198941184.

The previous prime is 687086321. The next prime is 687086347. The reversal of 687086322 is 223680786.

687086322 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×687086322² = 944175227758975368, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (687086321) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 231198 + ... + 234150.

It is an arithmetic number, because the mean of its divisors is an integer number (24503430).

Almost surely, 2^687086322 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 687086322, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (784109760).

687086322 is an abundant number, since it is smaller than the sum of its proper divisors (881133198).

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

687086322 is a wasteful number, since it uses less digits than its factorization.

687086322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3147.

The product of its (nonzero) digits is 193536, while the sum is 42.

The square root of 687086322 is about 26212.3314872981. The cubic root of 687086322 is about 882.4100268065.

The spelling of 687086322 in words is "six hundred eighty-seven million, eighty-six thousand, three hundred twenty-two".