428957495 has 4 divisors (see below), whose sum is σ = 514749000. Its totient is φ = 343165992.

The previous prime is 428957449. The next prime is 428957497. The reversal of 428957495 is 594759824.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 428957495 - 2⁸ = 428957239 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428957497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42895745 + ... + 42895754.

It is an arithmetic number, because the mean of its divisors is an integer number (128687250).

Almost surely, 2^428957495 is an apocalyptic number.

428957495 is a deficient number, since it is larger than the sum of its proper divisors (85791505).

428957495 is an equidigital number, since it uses as much as digits as its factorization.

428957495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85791504.

The product of its digits is 3628800, while the sum is 53.

The square root of 428957495 is about 20711.2890714219. The cubic root of 428957495 is about 754.1737639141.

The spelling of 428957495 in words is "four hundred twenty-eight million, nine hundred fifty-seven thousand, four hundred ninety-five".