428274911 has 4 divisors (see below), whose sum is σ = 434307024. Its totient is φ = 422242800.

The previous prime is 428274901. The next prime is 428274919. The reversal of 428274911 is 119472824.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 428274911 - 2¹⁴ = 428258527 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 (428274919) 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, 3015950 + ... + 3016091.

It is an arithmetic number, because the mean of its divisors is an integer number (108576756).

Almost surely, 2^428274911 is an apocalyptic number.

428274911 is a deficient number, since it is larger than the sum of its proper divisors (6032113).

428274911 is an equidigital number, since it uses as much as digits as its factorization.

428274911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6032112.

The product of its digits is 32256, while the sum is 38.

The square root of 428274911 is about 20694.8039613812. The cubic root of 428274911 is about 753.7735220519.

The spelling of 428274911 in words is "four hundred twenty-eight million, two hundred seventy-four thousand, nine hundred eleven".