80668735 has 16 divisors (see below), whose sum is σ = 111002112. Its totient is φ = 55130400.

The previous prime is 80668733. The next prime is 80668747. The reversal of 80668735 is 53786608.

It is not a de Polignac number, because 80668735 - 2¹ = 80668733 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 80668691 and 80668700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80668733) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7180 + ... + 14590.

It is an arithmetic number, because the mean of its divisors is an integer number (6937632).

Almost surely, 2^80668735 is an apocalyptic number.

80668735 is a deficient number, since it is larger than the sum of its proper divisors (30333377).

80668735 is a wasteful number, since it uses less digits than its factorization.

80668735 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7734.

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 80668735 is about 8981.5775340416. The cubic root of 80668735 is about 432.0842296181.

The spelling of 80668735 in words is "eighty million, six hundred sixty-eight thousand, seven hundred thirty-five".