1248447806 has 4 divisors (see below), whose sum is σ = 1872671712. Its totient is φ = 624223902.

The previous prime is 1248447787. The next prime is 1248447817. The reversal of 1248447806 is 6087448421.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312111950 + ... + 312111953.

It is an arithmetic number, because the mean of its divisors is an integer number (468167928).

Almost surely, 2^1248447806 is an apocalyptic number.

1248447806 is a deficient number, since it is larger than the sum of its proper divisors (624223906).

1248447806 is an equidigital number, since it uses as much as digits as its factorization.

1248447806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 624223905.

The product of its (nonzero) digits is 344064, while the sum is 44.

The square root of 1248447806 is about 35333.3809024837. The cubic root of 1248447806 is about 1076.7712802506.

The spelling of 1248447806 in words is "one billion, two hundred forty-eight million, four hundred forty-seven thousand, eight hundred six".