687873325 has 12 divisors (see below), whose sum is σ = 853927488. Its totient is φ = 549676400.

The previous prime is 687873323. The next prime is 687873349. The reversal of 687873325 is 523378786.

It is not a de Polignac number, because 687873325 - 2¹ = 687873323 is a prime.

It is a super-2 number, since 2×687873325² = 946339422493111250, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (687873323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7674 + ... + 37876.

It is an arithmetic number, because the mean of its divisors is an integer number (71160624).

Almost surely, 2^687873325 is an apocalyptic number.

It is an amenable number.

687873325 is a deficient number, since it is larger than the sum of its proper divisors (166054163).

687873325 is a wasteful number, since it uses less digits than its factorization.

687873325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31124 (or 31119 counting only the distinct ones).

The product of its digits is 1693440, while the sum is 49.

The square root of 687873325 is about 26227.3392664982. The cubic root of 687873325 is about 882.7468085351.

The spelling of 687873325 in words is "six hundred eighty-seven million, eight hundred seventy-three thousand, three hundred twenty-five".