687046441 has 16 divisors (see below), whose sum is σ = 737352000. Its totient is φ = 638281728.

The previous prime is 687046433. The next prime is 687046457. The reversal of 687046441 is 144640786.

It is not a de Polignac number, because 687046441 - 2³ = 687046433 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 687046394 and 687046403.

It is not an unprimeable number, because it can be changed into a prime (687046421) 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, 206610 + ... + 209908.

It is an arithmetic number, because the mean of its divisors is an integer number (46084500).

Almost surely, 2^687046441 is an apocalyptic number.

It is an amenable number.

687046441 is a deficient number, since it is larger than the sum of its proper divisors (50305559).

687046441 is a wasteful number, since it uses less digits than its factorization.

687046441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3528.

The product of its (nonzero) digits is 129024, while the sum is 40.

The square root of 687046441 is about 26211.5707465234. The cubic root of 687046441 is about 882.3929537091.

The spelling of 687046441 in words is "six hundred eighty-seven million, forty-six thousand, four hundred forty-one".