428793555 has 32 divisors (see below), whose sum is σ = 706708800. Its totient is φ = 221847552.

The previous prime is 428793527. The next prime is 428793557. The reversal of 428793555 is 555397824.

It is not a de Polignac number, because 428793555 - 2¹⁶ = 428728019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (428793557) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 226051 + ... + 227939.

It is an arithmetic number, because the mean of its divisors is an integer number (22084650).

Almost surely, 2^428793555 is an apocalyptic number.

428793555 is a deficient number, since it is larger than the sum of its proper divisors (277915245).

428793555 is a wasteful number, since it uses less digits than its factorization.

428793555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2343.

The product of its digits is 1512000, while the sum is 48.

The square root of 428793555 is about 20707.3309482415. The cubic root of 428793555 is about 754.0776743617.

The spelling of 428793555 in words is "four hundred twenty-eight million, seven hundred ninety-three thousand, five hundred fifty-five".