801229636 has 9 divisors (see below), whose sum is σ = 1402250941. Its totient is φ = 400586512.

The previous prime is 801229609. The next prime is 801229643. The reversal of 801229636 is 636922108.

The square root of 801229636 is 28306.

It is a perfect power (a square), and thus also a powerful number.

801229636 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 305900100 + 495329536 = 17490^2 + 22256^2 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 801229595 and 801229604.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 49536 + ... + 63688.

Almost surely, 2^801229636 is an apocalyptic number.

801229636 is the 28306-th square number.

It is an amenable number.

801229636 is a deficient number, since it is larger than the sum of its proper divisors (601021305).

801229636 is an frugal number, since it uses more digits than its factorization.

801229636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28310 (or 14155 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 37.

The cubic root of 801229636 is about 928.7931453068.

The spelling of 801229636 in words is "eight hundred one million, two hundred twenty-nine thousand, six hundred thirty-six".