80710985 has 32 divisors (see below), whose sum is σ = 106375680. Its totient is φ = 58550272.

The previous prime is 80710939. The next prime is 80710999. The reversal of 80710985 is 58901708.

It is a cyclic number.

It is not a de Polignac number, because 80710985 - 2¹⁶ = 80645449 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 355442 + ... + 355668.

It is an arithmetic number, because the mean of its divisors is an integer number (3324240).

Almost surely, 2^80710985 is an apocalyptic number.

80710985 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

80710985 is a deficient number, since it is larger than the sum of its proper divisors (25664695).

80710985 is a wasteful number, since it uses less digits than its factorization.

80710985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385.

The product of its (nonzero) digits is 20160, while the sum is 38.

The square root of 80710985 is about 8983.9292628560. The cubic root of 80710985 is about 432.1596507113.

The spelling of 80710985 in words is "eighty million, seven hundred ten thousand, nine hundred eighty-five".