428170707 has 12 divisors (see below), whose sum is σ = 624846040. Its totient is φ = 282503808.

The previous prime is 428170661. The next prime is 428170711. The reversal of 428170707 is 707071824.

It is not a de Polignac number, because 428170707 - 2¹⁸ = 427908563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (428170747) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 244357 + ... + 246102.

Almost surely, 2^428170707 is an apocalyptic number.

428170707 is a deficient number, since it is larger than the sum of its proper divisors (196675333).

428170707 is a wasteful number, since it uses less digits than its factorization.

428170707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490562 (or 490559 counting only the distinct ones).

The product of its (nonzero) digits is 21952, while the sum is 36.

The square root of 428170707 is about 20692.2861714215. The cubic root of 428170707 is about 753.7123832947.

The spelling of 428170707 in words is "four hundred twenty-eight million, one hundred seventy thousand, seven hundred seven".