428446707 has 8 divisors (see below), whose sum is σ = 615205584. Its totient is φ = 263659488.

The previous prime is 428446687. The next prime is 428446727. The reversal of 428446707 is 707644824.

It is an interprime number because it is at equal distance from previous prime (428446687) and next prime (428446727).

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

It is not a de Polignac number, because 428446707 - 2²⁰ = 427398131 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (428446727) 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, 5492868 + ... + 5492945.

It is an arithmetic number, because the mean of its divisors is an integer number (76900698).

Almost surely, 2^428446707 is an apocalyptic number.

428446707 is a deficient number, since it is larger than the sum of its proper divisors (186758877).

428446707 is a wasteful number, since it uses less digits than its factorization.

428446707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10985829.

The product of its (nonzero) digits is 301056, while the sum is 42.

The square root of 428446707 is about 20698.9542489470. The cubic root of 428446707 is about 753.8742968591.

The spelling of 428446707 in words is "four hundred twenty-eight million, four hundred forty-six thousand, seven hundred seven".