801223567 has 4 divisors (see below), whose sum is σ = 822878296. Its totient is φ = 779568840.

The previous prime is 801223537. The next prime is 801223573. The reversal of 801223567 is 765322108.

It is a happy number.

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 801223567 - 2⁷ = 801223439 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 (801223537) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10827309 + ... + 10827382.

It is an arithmetic number, because the mean of its divisors is an integer number (205719574).

Almost surely, 2^801223567 is an apocalyptic number.

801223567 is a deficient number, since it is larger than the sum of its proper divisors (21654729).

801223567 is a wasteful number, since it uses less digits than its factorization.

801223567 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21654728.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 801223567 is about 28305.8927963772. The cubic root of 801223567 is about 928.7908002198.

The spelling of 801223567 in words is "eight hundred one million, two hundred twenty-three thousand, five hundred sixty-seven".