687228227 has 8 divisors (see below), whose sum is σ = 791400192. Its totient is φ = 584555400.

The previous prime is 687228209. The next prime is 687228229. The reversal of 687228227 is 722822786.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-687228227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (687228229) 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, 373799 + ... + 375632.

It is an arithmetic number, because the mean of its divisors is an integer number (98925024).

Almost surely, 2^687228227 is an apocalyptic number.

687228227 is a deficient number, since it is larger than the sum of its proper divisors (104171965).

687228227 is a wasteful number, since it uses less digits than its factorization.

687228227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 749569.

The product of its digits is 301056, while the sum is 44.

The square root of 687228227 is about 26215.0381842179. The cubic root of 687228227 is about 882.4707711270.

The spelling of 687228227 in words is "six hundred eighty-seven million, two hundred twenty-eight thousand, two hundred twenty-seven".