801222047 has 4 divisors (see below), whose sum is σ = 802162200. Its totient is φ = 800281896.

The previous prime is 801222017. The next prime is 801222073. The reversal of 801222047 is 740222108.

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

It is a cyclic number.

It is not a de Polignac number, because 801222047 - 2⁶ = 801221983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (801222017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 468797 + ... + 470502.

It is an arithmetic number, because the mean of its divisors is an integer number (200540550).

Almost surely, 2^801222047 is an apocalyptic number.

801222047 is a deficient number, since it is larger than the sum of its proper divisors (940153).

801222047 is an equidigital number, since it uses as much as digits as its factorization.

801222047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 940152.

The product of its (nonzero) digits is 1792, while the sum is 26.

The square root of 801222047 is about 28305.8659468316. The cubic root of 801222047 is about 928.7902128835.

The spelling of 801222047 in words is "eight hundred one million, two hundred twenty-two thousand, forty-seven".