428431067 has 8 divisors (see below), whose sum is σ = 442490880. Its totient is φ = 414386280.

The previous prime is 428431063. The next prime is 428431117. The reversal of 428431067 is 760134824.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 428431067 - 2² = 428431063 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (428431063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100934 + ... + 105092.

It is an arithmetic number, because the mean of its divisors is an integer number (55311360).

Almost surely, 2^428431067 is an apocalyptic number.

428431067 is a deficient number, since it is larger than the sum of its proper divisors (14059813).

428431067 is a wasteful number, since it uses less digits than its factorization.

428431067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7513.

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 428431067 is about 20698.5764486353. The cubic root of 428431067 is about 753.8651236160.

The spelling of 428431067 in words is "four hundred twenty-eight million, four hundred thirty-one thousand, sixty-seven".