428754897 has 8 divisors (see below), whose sum is σ = 635192480. Its totient is φ = 285836580.

The previous prime is 428754889. The next prime is 428754901. The reversal of 428754897 is 798457824.

It is a happy number.

428754897 is a `hidden beast` number, since 4 + 2 + 8 + 7 + 548 + 97 = 666.

It is not a de Polignac number, because 428754897 - 2³ = 428754889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (428754827) 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, 7939879 + ... + 7939932.

It is an arithmetic number, because the mean of its divisors is an integer number (79399060).

Almost surely, 2^428754897 is an apocalyptic number.

It is an amenable number.

428754897 is a deficient number, since it is larger than the sum of its proper divisors (206437583).

428754897 is a wasteful number, since it uses less digits than its factorization.

428754897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15879820 (or 15879814 counting only the distinct ones).

The product of its digits is 4515840, while the sum is 54.

The square root of 428754897 is about 20706.3974896649. The cubic root of 428754897 is about 754.0550123211.

The spelling of 428754897 in words is "four hundred twenty-eight million, seven hundred fifty-four thousand, eight hundred ninety-seven".