687194112 has 240 divisors, whose sum is σ = 2113864704. Its totient is φ = 196608000.

The previous prime is 687194087. The next prime is 687194117. The reversal of 687194112 is 211491786.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (687194117) 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, 16760812 + ... + 16760852.

Almost surely, 2^687194112 is an apocalyptic number.

687194112 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 687194112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1056932352).

687194112 is an abundant number, since it is smaller than the sum of its proper divisors (1426670592).

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

687194112 is a wasteful number, since it uses less digits than its factorization.

687194112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114 (or 88 counting only the distinct ones).

The product of its digits is 24192, while the sum is 39.

The square root of 687194112 is about 26214.3874999970. The cubic root of 687194112 is about 882.4561685116.

The spelling of 687194112 in words is "six hundred eighty-seven million, one hundred ninety-four thousand, one hundred twelve".