80859236 has 6 divisors (see below), whose sum is σ = 141503670. Its totient is φ = 40429616.

The previous prime is 80859227. The next prime is 80859299. The reversal of 80859236 is 63295808.

It can be written as a sum of positive squares in only one way, i.e., 64000000 + 16859236 = 8000^2 + 4106^2 .

It is a junction number, because it is equal to n+sod(n) for n = 80859193 and 80859202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10107401 + ... + 10107408.

It is an arithmetic number, because the mean of its divisors is an integer number (23583945).

Almost surely, 2^80859236 is an apocalyptic number.

It is an amenable number.

80859236 is a deficient number, since it is larger than the sum of its proper divisors (60644434).

80859236 is a wasteful number, since it uses less digits than its factorization.

80859236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20214813 (or 20214811 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 80859236 is about 8992.1763772737. The cubic root of 80859236 is about 432.4240877158.

The spelling of 80859236 in words is "eighty million, eight hundred fifty-nine thousand, two hundred thirty-six".