428052705 has 8 divisors (see below), whose sum is σ = 684884352. Its totient is φ = 228294768.

The previous prime is 428052697. The next prime is 428052721. The reversal of 428052705 is 507250824.

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

It is not a de Polignac number, because 428052705 - 2³ = 428052697 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14268409 + ... + 14268438.

It is an arithmetic number, because the mean of its divisors is an integer number (85610544).

Almost surely, 2^428052705 is an apocalyptic number.

It is an amenable number.

428052705 is a deficient number, since it is larger than the sum of its proper divisors (256831647).

428052705 is a wasteful number, since it uses less digits than its factorization.

428052705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28536855.

The product of its (nonzero) digits is 22400, while the sum is 33.

The square root of 428052705 is about 20689.4346225314. The cubic root of 428052705 is about 753.6431369724.

The spelling of 428052705 in words is "four hundred twenty-eight million, fifty-two thousand, seven hundred five".