687448714 has 16 divisors (see below), whose sum is σ = 1040652288. Its totient is φ = 340571952.

The previous prime is 687448673. The next prime is 687448733. The reversal of 687448714 is 417844786.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 282507 + ... + 284929.

It is an arithmetic number, because the mean of its divisors is an integer number (65040768).

Almost surely, 2^687448714 is an apocalyptic number.

687448714 is a deficient number, since it is larger than the sum of its proper divisors (353203574).

687448714 is a wasteful number, since it uses less digits than its factorization.

687448714 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3669.

The product of its digits is 1204224, while the sum is 49.

The square root of 687448714 is about 26219.2432003672. The cubic root of 687448714 is about 882.5651369288.

The spelling of 687448714 in words is "six hundred eighty-seven million, four hundred forty-eight thousand, seven hundred fourteen".