8428451 has 4 divisors (see below), whose sum is σ = 8447352. Its totient is φ = 8409552.

The previous prime is 8428439. The next prime is 8428471. The reversal of 8428451 is 1548248.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8428451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8428421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8765 + ... + 9678.

It is an arithmetic number, because the mean of its divisors is an integer number (2111838).

Almost surely, 2^8428451 is an apocalyptic number.

8428451 is a deficient number, since it is larger than the sum of its proper divisors (18901).

8428451 is a wasteful number, since it uses less digits than its factorization.

8428451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18900.

The product of its digits is 10240, while the sum is 32.

The square root of 8428451 is about 2903.1794639670. The cubic root of 8428451 is about 203.5085166484.

The spelling of 8428451 in words is "eight million, four hundred twenty-eight thousand, four hundred fifty-one".