428681953 has 16 divisors (see below), whose sum is σ = 499682304. Its totient is φ = 360164160.

The previous prime is 428681947. The next prime is 428681999. The reversal of 428681953 is 359186824.

It is a cyclic number.

It is not a de Polignac number, because 428681953 - 2²¹ = 426584801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (428681053) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133776 + ... + 136942.

It is an arithmetic number, because the mean of its divisors is an integer number (31230144).

Almost surely, 2^428681953 is an apocalyptic number.

It is an amenable number.

428681953 is a deficient number, since it is larger than the sum of its proper divisors (71000351).

428681953 is a wasteful number, since it uses less digits than its factorization.

428681953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3552.

The product of its digits is 414720, while the sum is 46.

The square root of 428681953 is about 20704.6360267453. The cubic root of 428681953 is about 754.0122474775.

The spelling of 428681953 in words is "four hundred twenty-eight million, six hundred eighty-one thousand, nine hundred fifty-three".