687341545 has 16 divisors (see below), whose sum is σ = 938915712. Its totient is φ = 478149760.

The previous prime is 687341539. The next prime is 687341561. The reversal of 687341545 is 545143786.

It is not a de Polignac number, because 687341545 - 2⁵ = 687341513 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 270412 + ... + 272941.

It is an arithmetic number, because the mean of its divisors is an integer number (58682232).

Almost surely, 2^687341545 is an apocalyptic number.

It is an amenable number.

687341545 is a deficient number, since it is larger than the sum of its proper divisors (251574167).

687341545 is a wasteful number, since it uses less digits than its factorization.

687341545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543392.

The product of its digits is 403200, while the sum is 43.

The square root of 687341545 is about 26217.1994118365. The cubic root of 687341545 is about 882.5192723978.

The spelling of 687341545 in words is "six hundred eighty-seven million, three hundred forty-one thousand, five hundred forty-five".