687425383 has 4 divisors (see below), whose sum is σ = 687510400. Its totient is φ = 687340368.

The previous prime is 687425353. The next prime is 687425407. The reversal of 687425383 is 383524786.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 687425383 - 2²⁵ = 653870951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (687425303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28935 + ... + 47032.

It is an arithmetic number, because the mean of its divisors is an integer number (171877600).

Almost surely, 2^687425383 is an apocalyptic number.

687425383 is a deficient number, since it is larger than the sum of its proper divisors (85017).

687425383 is an equidigital number, since it uses as much as digits as its factorization.

687425383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85016.

The product of its digits is 967680, while the sum is 46.

The square root of 687425383 is about 26218.7982752833. The cubic root of 687425383 is about 882.5551524942. Note that the first 3 decimals are identical.

The spelling of 687425383 in words is "six hundred eighty-seven million, four hundred twenty-five thousand, three hundred eighty-three".