687725373 has 8 divisors (see below), whose sum is σ = 917264736. Its totient is φ = 458334800.

The previous prime is 687725371. The next prime is 687725377. The reversal of 687725373 is 373527786.

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

It is a cyclic number.

It is not a de Polignac number, because 687725373 - 2¹ = 687725371 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (687725371) 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, 25923 + ... + 45248.

It is an arithmetic number, because the mean of its divisors is an integer number (114658092).

Almost surely, 2^687725373 is an apocalyptic number.

It is an amenable number.

687725373 is a deficient number, since it is larger than the sum of its proper divisors (229539363).

687725373 is a wasteful number, since it uses less digits than its factorization.

687725373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74395.

The product of its digits is 1481760, while the sum is 48.

The square root of 687725373 is about 26224.5185465816. The cubic root of 687725373 is about 882.6835151369.

The spelling of 687725373 in words is "six hundred eighty-seven million, seven hundred twenty-five thousand, three hundred seventy-three".