676655421 has 8 divisors (see below), whose sum is σ = 971607840. Its totient is φ = 416403312.

The previous prime is 676655411. The next prime is 676655449. The reversal of 676655421 is 124556676.

676655421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 676655421 - 2⁵ = 676655389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (676655411) 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, 8675031 + ... + 8675108.

It is an arithmetic number, because the mean of its divisors is an integer number (121450980).

Almost surely, 2^676655421 is an apocalyptic number.

It is an amenable number.

676655421 is a deficient number, since it is larger than the sum of its proper divisors (294952419).

676655421 is a wasteful number, since it uses less digits than its factorization.

676655421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17350155.

The product of its digits is 302400, while the sum is 42.

The square root of 676655421 is about 26012.6011963433. The cubic root of 676655421 is about 877.9218442339.

The spelling of 676655421 in words is "six hundred seventy-six million, six hundred fifty-five thousand, four hundred twenty-one".