428103566 has 12 divisors (see below), whose sum is σ = 705840576. Its totient is φ = 194592420.

The previous prime is 428103563. The next prime is 428103593. The reversal of 428103566 is 665301824.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428103563) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 884270 + ... + 884753.

It is an arithmetic number, because the mean of its divisors is an integer number (58820048).

Almost surely, 2^428103566 is an apocalyptic number.

428103566 is a deficient number, since it is larger than the sum of its proper divisors (277737010).

428103566 is a wasteful number, since it uses less digits than its factorization.

428103566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1769047 (or 1769036 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 428103566 is about 20690.6637399577. The cubic root of 428103566 is about 753.6729849522.

The spelling of 428103566 in words is "four hundred twenty-eight million, one hundred three thousand, five hundred sixty-six".