428077695 has 32 divisors (see below), whose sum is σ = 730137600. Its totient is φ = 213542784.

The previous prime is 428077691. The next prime is 428077709. The reversal of 428077695 is 596770824.

It is not a de Polignac number, because 428077695 - 2² = 428077691 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428077691) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13009 + ... + 32021.

It is an arithmetic number, because the mean of its divisors is an integer number (22816800).

Almost surely, 2^428077695 is an apocalyptic number.

428077695 is a deficient number, since it is larger than the sum of its proper divisors (302059905).

428077695 is a wasteful number, since it uses less digits than its factorization.

428077695 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19119.

The product of its (nonzero) digits is 846720, while the sum is 48.

The square root of 428077695 is about 20690.0385451550. The cubic root of 428077695 is about 753.6578027486.

The spelling of 428077695 in words is "four hundred twenty-eight million, seventy-seven thousand, six hundred ninety-five".