8428699 has 4 divisors (see below), whose sum is σ = 8453200. Its totient is φ = 8404200.

The previous prime is 8428697. The next prime is 8428703. The reversal of 8428699 is 9968248.

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 8428699 - 2¹ = 8428697 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8428691) 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, 11727 + ... + 12424.

It is an arithmetic number, because the mean of its divisors is an integer number (2113300).

Almost surely, 2^8428699 is an apocalyptic number.

8428699 is a deficient number, since it is larger than the sum of its proper divisors (24501).

8428699 is a wasteful number, since it uses less digits than its factorization.

8428699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24500.

The product of its digits is 248832, while the sum is 46.

The square root of 8428699 is about 2903.2221754458. Note that the first 3 decimals coincide. The cubic root of 8428699 is about 203.5105126505.

The spelling of 8428699 in words is "eight million, four hundred twenty-eight thousand, six hundred ninety-nine".