8078542 has 4 divisors (see below), whose sum is σ = 12117816. Its totient is φ = 4039270.

The previous prime is 8078537. The next prime is 8078579. The reversal of 8078542 is 2458708.

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

It is a junction number, because it is equal to n+sod(n) for n = 8078498 and 8078507.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2019634 + ... + 2019637.

It is an arithmetic number, because the mean of its divisors is an integer number (3029454).

Almost surely, 2^8078542 is an apocalyptic number.

8078542 is a deficient number, since it is larger than the sum of its proper divisors (4039274).

8078542 is a wasteful number, since it uses less digits than its factorization.

8078542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4039273.

The product of its (nonzero) digits is 17920, while the sum is 34.

The square root of 8078542 is about 2842.2776078350. The cubic root of 8078542 is about 200.6523863133.

The spelling of 8078542 in words is "eight million, seventy-eight thousand, five hundred forty-two".