428349177 has 12 divisors (see below), whose sum is σ = 627441984. Its totient is φ = 281543640.

The previous prime is 428349109. The next prime is 428349179. The reversal of 428349177 is 771943824.

It is not a de Polignac number, because 428349177 - 2¹⁹ = 427824889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (428349179) 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, 334533 + ... + 335810.

It is an arithmetic number, because the mean of its divisors is an integer number (52286832).

Almost surely, 2^428349177 is an apocalyptic number.

It is an amenable number.

428349177 is a deficient number, since it is larger than the sum of its proper divisors (199092807).

428349177 is a wasteful number, since it uses less digits than its factorization.

428349177 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670420 (or 670417 counting only the distinct ones).

The product of its digits is 338688, while the sum is 45.

The square root of 428349177 is about 20696.5981987379. The cubic root of 428349177 is about 753.8170894798.

The spelling of 428349177 in words is "four hundred twenty-eight million, three hundred forty-nine thousand, one hundred seventy-seven".