428424977 has 8 divisors (see below), whose sum is σ = 452849760. Its totient is φ = 404187840.

The previous prime is 428424967. The next prime is 428424989. The reversal of 428424977 is 779424824.

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

It is a cyclic number.

It is not a de Polignac number, because 428424977 - 2²⁸ = 159989521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (428424967) 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, 42203 + ... + 51360.

It is an arithmetic number, because the mean of its divisors is an integer number (56606220).

Almost surely, 2^428424977 is an apocalyptic number.

It is an amenable number.

428424977 is a deficient number, since it is larger than the sum of its proper divisors (24424783).

428424977 is a wasteful number, since it uses less digits than its factorization.

428424977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93823.

The product of its digits is 903168, while the sum is 47.

The square root of 428424977 is about 20698.4293365463. The cubic root of 428424977 is about 753.8615516214.

The spelling of 428424977 in words is "four hundred twenty-eight million, four hundred twenty-four thousand, nine hundred seventy-seven".