8434406 has 4 divisors (see below), whose sum is σ = 12651612. Its totient is φ = 4217202.

The previous prime is 8434403. The next prime is 8434427. The reversal of 8434406 is 6044348.

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

It is a super-2 number, since 2×8434406² = 142278409145672, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8434403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2108600 + ... + 2108603.

It is an arithmetic number, because the mean of its divisors is an integer number (3162903).

Almost surely, 2^8434406 is an apocalyptic number.

8434406 is a deficient number, since it is larger than the sum of its proper divisors (4217206).

8434406 is a wasteful number, since it uses less digits than its factorization.

8434406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4217205.

The product of its (nonzero) digits is 9216, while the sum is 29.

The square root of 8434406 is about 2904.2048825797. The cubic root of 8434406 is about 203.5564340302.

The spelling of 8434406 in words is "eight million, four hundred thirty-four thousand, four hundred six".