428174647 has 16 divisors (see below), whose sum is σ = 463357440. Its totient is φ = 394444512.

The previous prime is 428174599. The next prime is 428174657. The reversal of 428174647 is 746471824.

It is a cyclic number.

It is not a de Polignac number, because 428174647 - 2¹⁹ = 427650359 is a prime.

It is a super-4 number, since 4×428174647⁴ (a number of 36 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428174657) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 484468 + ... + 485350.

It is an arithmetic number, because the mean of its divisors is an integer number (28959840).

Almost surely, 2^428174647 is an apocalyptic number.

428174647 is a deficient number, since it is larger than the sum of its proper divisors (35182793).

428174647 is a wasteful number, since it uses less digits than its factorization.

428174647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1662.

The product of its digits is 301056, while the sum is 43.

The square root of 428174647 is about 20692.3813757624. The cubic root of 428174647 is about 753.7146951590.

The spelling of 428174647 in words is "four hundred twenty-eight million, one hundred seventy-four thousand, six hundred forty-seven".