428631079 has 8 divisors (see below), whose sum is σ = 449713280. Its totient is φ = 408002400.

The previous prime is 428631067. The next prime is 428631109. The reversal of 428631079 is 970136824.

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 428631079 - 2²⁷ = 294413351 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428631019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111444 + ... + 115225.

It is an arithmetic number, because the mean of its divisors is an integer number (56214160).

Almost surely, 2^428631079 is an apocalyptic number.

428631079 is a deficient number, since it is larger than the sum of its proper divisors (21082201).

428631079 is a wasteful number, since it uses less digits than its factorization.

428631079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226761.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 428631079 is about 20703.4074248661. The cubic root of 428631079 is about 753.9824187304.

The spelling of 428631079 in words is "four hundred twenty-eight million, six hundred thirty-one thousand, seventy-nine".