687250047 has 16 divisors (see below), whose sum is σ = 1001024640. Its totient is φ = 415936800.

The previous prime is 687250013. The next prime is 687250061. The reversal of 687250047 is 740052786.

It is not a de Polignac number, because 687250047 - 2⁷ = 687249919 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 687249987 and 687250014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (687250087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10297 + ... + 38477.

It is an arithmetic number, because the mean of its divisors is an integer number (62564040).

Almost surely, 2^687250047 is an apocalyptic number.

687250047 is a deficient number, since it is larger than the sum of its proper divisors (313774593).

687250047 is a wasteful number, since it uses less digits than its factorization.

687250047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28934.

The product of its (nonzero) digits is 94080, while the sum is 39.

The square root of 687250047 is about 26215.4543542545. The cubic root of 687250047 is about 882.4801107262.

The spelling of 687250047 in words is "six hundred eighty-seven million, two hundred fifty thousand, forty-seven".