8457469 has 4 divisors (see below), whose sum is σ = 8477980. Its totient is φ = 8436960.

The previous prime is 8457461. The next prime is 8457479. The reversal of 8457469 is 9647548.

8457469 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 403225 + 8054244 = 635^2 + 2838^2 .

It is a cyclic number.

It is not a de Polignac number, because 8457469 - 2³ = 8457461 is a prime.

It is a super-2 number, since 2×8457469² = 143057563771922, which contains 22 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 (8457461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9624 + ... + 10465.

It is an arithmetic number, because the mean of its divisors is an integer number (2119495).

Almost surely, 2^8457469 is an apocalyptic number.

It is an amenable number.

8457469 is a deficient number, since it is larger than the sum of its proper divisors (20511).

8457469 is a wasteful number, since it uses less digits than its factorization.

8457469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20510.

The product of its digits is 241920, while the sum is 43.

The square root of 8457469 is about 2908.1727940410. The cubic root of 8457469 is about 203.7417997628.

The spelling of 8457469 in words is "eight million, four hundred fifty-seven thousand, four hundred sixty-nine".