687050070 has 192 divisors, whose sum is σ = 2139333120. Its totient is φ = 139926528.

The previous prime is 687050059. The next prime is 687050083. The reversal of 687050070 is 70050786.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 474087 + ... + 475533.

It is an arithmetic number, because the mean of its divisors is an integer number (11142360).

Almost surely, 2^687050070 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 687050070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1069666560).

687050070 is an abundant number, since it is smaller than the sum of its proper divisors (1452283050).

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

687050070 is a wasteful number, since it uses less digits than its factorization.

687050070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1507 (or 1500 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 33.

The square root of 687050070 is about 26211.6399715851. The cubic root of 687050070 is about 882.3945073151.

The spelling of 687050070 in words is "six hundred eighty-seven million, fifty thousand, seventy".