8434487 has 4 divisors (see below), whose sum is σ = 8453016. Its totient is φ = 8415960.

The previous prime is 8434477. The next prime is 8434501. The reversal of 8434487 is 7844348.

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 8434487 - 2¹⁰ = 8433463 is a prime.

It is a super-2 number, since 2×8434487² = 142281141906338, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8434487.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8434427) 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, 8564 + ... + 9497.

It is an arithmetic number, because the mean of its divisors is an integer number (2113254).

Almost surely, 2^8434487 is an apocalyptic number.

8434487 is a deficient number, since it is larger than the sum of its proper divisors (18529).

8434487 is a wasteful number, since it uses less digits than its factorization.

8434487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18528.

The product of its digits is 86016, while the sum is 38.

The square root of 8434487 is about 2904.2188278434. The cubic root of 8434487 is about 203.5570856476.

The spelling of 8434487 in words is "eight million, four hundred thirty-four thousand, four hundred eighty-seven".