801233905 has 16 divisors (see below), whose sum is σ = 1007322624. Its totient is φ = 611043840.

The previous prime is 801233897. The next prime is 801233969. The reversal of 801233905 is 509332108.

It is a happy number.

It is not a de Polignac number, because 801233905 - 2³ = 801233897 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 28192 + ... + 48961.

It is an arithmetic number, because the mean of its divisors is an integer number (62957664).

Almost surely, 2^801233905 is an apocalyptic number.

It is an amenable number.

801233905 is a deficient number, since it is larger than the sum of its proper divisors (206088719).

801233905 is a wasteful number, since it uses less digits than its factorization.

801233905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77256.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 801233905 is about 28306.0754079403. The cubic root of 801233905 is about 928.7947948593.

The spelling of 801233905 in words is "eight hundred one million, two hundred thirty-three thousand, nine hundred five".