8542406 has 4 divisors (see below), whose sum is σ = 12813612. Its totient is φ = 4271202.

The previous prime is 8542367. The next prime is 8542409. The reversal of 8542406 is 6042458.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8542409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2135600 + ... + 2135603.

It is an arithmetic number, because the mean of its divisors is an integer number (3203403).

Almost surely, 2^8542406 is an apocalyptic number.

8542406 is a deficient number, since it is larger than the sum of its proper divisors (4271206).

8542406 is a wasteful number, since it uses less digits than its factorization.

8542406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4271205.

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 8542406 is about 2922.7394683755. The cubic root of 8542406 is about 204.4215778834.

The spelling of 8542406 in words is "eight million, five hundred forty-two thousand, four hundred six".