80735685 has 8 divisors (see below), whose sum is σ = 129177120. Its totient is φ = 43059024.

The previous prime is 80735671. The next prime is 80735701. The reversal of 80735685 is 58653708.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 80735685 - 2⁵ = 80735653 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2691175 + ... + 2691204.

It is an arithmetic number, because the mean of its divisors is an integer number (16147140).

Almost surely, 2^80735685 is an apocalyptic number.

It is an amenable number.

80735685 is a deficient number, since it is larger than the sum of its proper divisors (48441435).

80735685 is a wasteful number, since it uses less digits than its factorization.

80735685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5382387.

The product of its (nonzero) digits is 201600, while the sum is 42.

The square root of 80735685 is about 8985.3038345957. The cubic root of 80735685 is about 432.2037308518.

The spelling of 80735685 in words is "eighty million, seven hundred thirty-five thousand, six hundred eighty-five".