80684835 has 32 divisors (see below), whose sum is σ = 160952832. Its totient is φ = 33530880.

The previous prime is 80684831. The next prime is 80684861. The reversal of 80684835 is 53848608.

It is not a de Polignac number, because 80684835 - 2² = 80684831 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80684831) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33774 + ... + 36083.

It is an arithmetic number, because the mean of its divisors is an integer number (5029776).

Almost surely, 2^80684835 is an apocalyptic number.

80684835 is a deficient number, since it is larger than the sum of its proper divisors (80267997).

80684835 is a wasteful number, since it uses less digits than its factorization.

80684835 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69883.

The product of its (nonzero) digits is 184320, while the sum is 42.

The square root of 80684835 is about 8982.4737684003. The cubic root of 80684835 is about 432.1129730685.

The spelling of 80684835 in words is "eighty million, six hundred eighty-four thousand, eight hundred thirty-five".