428467619 has 4 divisors (see below), whose sum is σ = 429702744. Its totient is φ = 427232496.

The previous prime is 428467607. The next prime is 428467631. The reversal of 428467619 is 916764824.

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

It is an interprime number because it is at equal distance from previous prime (428467607) and next prime (428467631).

It is a cyclic number.

It is not a de Polignac number, because 428467619 - 2⁴ = 428467603 is a prime.

It is a super-2 number, since 2×428467619² = 367169001063058322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (428467019) 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, 617042 + ... + 617735.

It is an arithmetic number, because the mean of its divisors is an integer number (107425686).

Almost surely, 2^428467619 is an apocalyptic number.

428467619 is a deficient number, since it is larger than the sum of its proper divisors (1235125).

428467619 is a wasteful number, since it uses less digits than its factorization.

428467619 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1235124.

The product of its digits is 580608, while the sum is 47.

The square root of 428467619 is about 20699.4593890758. The cubic root of 428467619 is about 753.8865619107.

The spelling of 428467619 in words is "four hundred twenty-eight million, four hundred sixty-seven thousand, six hundred nineteen".