42947806 has 8 divisors (see below), whose sum is σ = 70278264. Its totient is φ = 19521720.

The previous prime is 42947777. The next prime is 42947813. The reversal of 42947806 is 60874924.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 976065 + ... + 976108.

It is an arithmetic number, because the mean of its divisors is an integer number (8784783).

Almost surely, 2^42947806 is an apocalyptic number.

42947806 is a deficient number, since it is larger than the sum of its proper divisors (27330458).

42947806 is a wasteful number, since it uses less digits than its factorization.

42947806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1952186.

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 42947806 is about 6553.4575607079. The cubic root of 42947806 is about 350.1979995326.

It can be divided in two parts, 4294 and 7806, that added together give a square (12100 = 110²).

The spelling of 42947806 in words is "forty-two million, nine hundred forty-seven thousand, eight hundred six".