428929635 has 32 divisors (see below), whose sum is σ = 734190912. Its totient is φ = 213073920.

The previous prime is 428929621. The next prime is 428929643. The reversal of 428929635 is 536929824.

It is a happy number.

It is not a de Polignac number, because 428929635 - 2⁴ = 428929619 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16065 + ... + 33405.

It is an arithmetic number, because the mean of its divisors is an integer number (22943466).

Almost surely, 2^428929635 is an apocalyptic number.

428929635 is a deficient number, since it is larger than the sum of its proper divisors (305261277).

428929635 is a wasteful number, since it uses less digits than its factorization.

428929635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17463.

The product of its digits is 933120, while the sum is 48.

The square root of 428929635 is about 20710.6164804431. The cubic root of 428929635 is about 754.1574361612.

The spelling of 428929635 in words is "four hundred twenty-eight million, nine hundred twenty-nine thousand, six hundred thirty-five".