80788215 has 16 divisors (see below), whose sum is σ = 130207968. Its totient is φ = 42771456.

The previous prime is 80788189. The next prime is 80788231. The reversal of 80788215 is 51288708.

It is not a de Polignac number, because 80788215 - 2¹³ = 80780023 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17602 + ... + 21711.

It is an arithmetic number, because the mean of its divisors is an integer number (8137998).

Almost surely, 2^80788215 is an apocalyptic number.

80788215 is a deficient number, since it is larger than the sum of its proper divisors (49419753).

80788215 is a wasteful number, since it uses less digits than its factorization.

80788215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39458.

The product of its (nonzero) digits is 35840, while the sum is 39.

The square root of 80788215 is about 8988.2264657718. The cubic root of 80788215 is about 432.2974471136.

It can be divided in two parts, 80788 and 215, that added together give a triangular number (81003 = T₄₀₂).

The spelling of 80788215 in words is "eighty million, seven hundred eighty-eight thousand, two hundred fifteen".