428516967 has 4 divisors (see below), whose sum is σ = 571355960. Its totient is φ = 285677976.

The previous prime is 428516939. The next prime is 428516981. The reversal of 428516967 is 769615824.

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

It is not a de Polignac number, because 428516967 - 2⁷ = 428516839 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 (428516927) 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, 71419492 + ... + 71419497.

It is an arithmetic number, because the mean of its divisors is an integer number (142838990).

Almost surely, 2^428516967 is an apocalyptic number.

428516967 is a deficient number, since it is larger than the sum of its proper divisors (142838993).

428516967 is a wasteful number, since it uses less digits than its factorization.

428516967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142838992.

The product of its digits is 725760, while the sum is 48.

The square root of 428516967 is about 20700.6513665633. The cubic root of 428516967 is about 753.9155033166.

The spelling of 428516967 in words is "four hundred twenty-eight million, five hundred sixteen thousand, nine hundred sixty-seven".