8434739 has 4 divisors (see below), whose sum is σ = 8440824. Its totient is φ = 8428656.

The previous prime is 8434733. The next prime is 8434753. The reversal of 8434739 is 9374348.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 8434739 - 2¹⁶ = 8369203 is a prime.

It is a super-2 number, since 2×8434739² = 142289643996242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8434733) 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, 164 + ... + 4110.

It is an arithmetic number, because the mean of its divisors is an integer number (2110206).

Almost surely, 2^8434739 is an apocalyptic number.

8434739 is a deficient number, since it is larger than the sum of its proper divisors (6085).

8434739 is a wasteful number, since it uses less digits than its factorization.

8434739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6084.

The product of its digits is 72576, while the sum is 38.

The square root of 8434739 is about 2904.2622126798. The cubic root of 8434739 is about 203.5591128752.

The spelling of 8434739 in words is "eight million, four hundred thirty-four thousand, seven hundred thirty-nine".