80769985 has 8 divisors (see below), whose sum is σ = 97134336. Its totient is φ = 64475760.

The previous prime is 80769967. The next prime is 80770021. The reversal of 80769985 is 58996708.

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

It is a de Polignac number, because none of the positive numbers 2^k-80769985 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14961 + ... + 19630.

It is an arithmetic number, because the mean of its divisors is an integer number (12141792).

Almost surely, 2^80769985 is an apocalyptic number.

It is an amenable number.

80769985 is a deficient number, since it is larger than the sum of its proper divisors (16364351).

80769985 is a wasteful number, since it uses less digits than its factorization.

80769985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35063.

The product of its (nonzero) digits is 1088640, while the sum is 52.

The square root of 80769985 is about 8987.2123041575. The cubic root of 80769985 is about 432.2649284461.

The spelling of 80769985 in words is "eighty million, seven hundred sixty-nine thousand, nine hundred eighty-five".