428869903 has 24 divisors (see below), whose sum is σ = 561821184. Its totient is φ = 323391600.

The previous prime is 428869873. The next prime is 428869927. The reversal of 428869903 is 309968824.

It is not a de Polignac number, because 428869903 - 2⁵ = 428869871 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428869303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3876 + ... + 29542.

It is an arithmetic number, because the mean of its divisors is an integer number (23409216).

Almost surely, 2^428869903 is an apocalyptic number.

428869903 is a deficient number, since it is larger than the sum of its proper divisors (132951281).

428869903 is a wasteful number, since it uses less digits than its factorization.

428869903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25723 (or 25716 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 49.

The square root of 428869903 is about 20709.1743678979. The cubic root of 428869903 is about 754.1224269821.

The spelling of 428869903 in words is "four hundred twenty-eight million, eight hundred sixty-nine thousand, nine hundred three".