428000655 has 16 divisors (see below), whose sum is σ = 685064160. Its totient is φ = 228179328.

The previous prime is 428000633. The next prime is 428000701. The reversal of 428000655 is 556000824.

It is not a de Polignac number, because 428000655 - 2⁷ = 428000527 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60441 + ... + 67149.

It is an arithmetic number, because the mean of its divisors is an integer number (42816510).

Almost surely, 2^428000655 is an apocalyptic number.

428000655 is a deficient number, since it is larger than the sum of its proper divisors (257063505).

428000655 is a wasteful number, since it uses less digits than its factorization.

428000655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10970.

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 428000655 is about 20688.1766958812. The cubic root of 428000655 is about 753.6125887752.

The spelling of 428000655 in words is "four hundred twenty-eight million, six hundred fifty-five", and thus it is an aban number.