428728703 has 8 divisors (see below), whose sum is σ = 463428000. Its totient is φ = 394275168.

The previous prime is 428728697. The next prime is 428728709. The reversal of 428728703 is 307827824.

It is an interprime number because it is at equal distance from previous prime (428728697) and next prime (428728709).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 428728703 - 2⁴ = 428728687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428728709) 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, 57803 + ... + 64796.

It is an arithmetic number, because the mean of its divisors is an integer number (57928500).

Almost surely, 2^428728703 is an apocalyptic number.

428728703 is a deficient number, since it is larger than the sum of its proper divisors (34699297).

428728703 is a wasteful number, since it uses less digits than its factorization.

428728703 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122881.

The product of its (nonzero) digits is 150528, while the sum is 41.

The square root of 428728703 is about 20705.7649701720. The cubic root of 428728703 is about 754.0396561356.

The spelling of 428728703 in words is "four hundred twenty-eight million, seven hundred twenty-eight thousand, seven hundred three".