687162 has 16 divisors (see below), whose sum is σ = 1570752. Its totient is φ = 196320.

The previous prime is 687161. The next prime is 687163. The reversal of 687162 is 261786.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (687161) and next prime (687163).

It is a super-2 number, since 2×687162² = 944383228488, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (687161) 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, 8139 + ... + 8222.

It is an arithmetic number, because the mean of its divisors is an integer number (98172).

2⁶⁸⁷¹⁶² is an apocalyptic number.

687162 is an abundant number, since it is smaller than the sum of its proper divisors (883590).

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

687162 is a wasteful number, since it uses less digits than its factorization.

687162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16373.

The product of its digits is 4032, while the sum is 30.

The square root of 687162 is about 828.9523508622. The cubic root of 687162 is about 88.2442422821.

The spelling of 687162 in words is "six hundred eighty-seven thousand, one hundred sixty-two".