428112901 has 4 divisors (see below), whose sum is σ = 428400000. Its totient is φ = 427825804.

The previous prime is 428112899. The next prime is 428112943. The reversal of 428112901 is 109211824.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 428112901 - 2¹ = 428112899 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 428112901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428115901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141301 + ... + 144298.

It is an arithmetic number, because the mean of its divisors is an integer number (107100000).

Almost surely, 2^428112901 is an apocalyptic number.

It is an amenable number.

428112901 is a deficient number, since it is larger than the sum of its proper divisors (287099).

428112901 is a wasteful number, since it uses less digits than its factorization.

428112901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287098.

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 428112901 is about 20690.8893235646. The cubic root of 428112901 is about 753.6784629773.

The spelling of 428112901 in words is "four hundred twenty-eight million, one hundred twelve thousand, nine hundred one".