687625041 has 8 divisors (see below), whose sum is σ = 919144384. Its totient is φ = 457261200.

The previous prime is 687625039. The next prime is 687625049. The reversal of 687625041 is 140526786.

687625041 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 687625041 - 2¹ = 687625039 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (687625049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 287485 + ... + 289866.

It is an arithmetic number, because the mean of its divisors is an integer number (114893048).

Almost surely, 2^687625041 is an apocalyptic number.

It is an amenable number.

687625041 is a deficient number, since it is larger than the sum of its proper divisors (231519343).

687625041 is a wasteful number, since it uses less digits than its factorization.

687625041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577751.

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 687625041 is about 26222.6055341570. The cubic root of 687625041 is about 882.6405882589.

The spelling of 687625041 in words is "six hundred eighty-seven million, six hundred twenty-five thousand, forty-one".