687106246 has 8 divisors (see below), whose sum is σ = 1030816080. Its totient is φ = 343500888.

The previous prime is 687106241. The next prime is 687106279. The reversal of 687106246 is 642601786.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×687106246² = 944229986584425032, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 687106199 and 687106208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (687106241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6826 + ... + 37693.

It is an arithmetic number, because the mean of its divisors is an integer number (128852010).

Almost surely, 2^687106246 is an apocalyptic number.

687106246 is a deficient number, since it is larger than the sum of its proper divisors (343709834).

687106246 is a wasteful number, since it uses less digits than its factorization.

687106246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52238.

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 687106246 is about 26212.7115346734. The cubic root of 687106246 is about 882.4185560441.

The spelling of 687106246 in words is "six hundred eighty-seven million, one hundred six thousand, two hundred forty-six".