80858645 has 16 divisors (see below), whose sum is σ = 111041280. Its totient is φ = 55371264.

The previous prime is 80858629. The next prime is 80858651. The reversal of 80858645 is 54685808.

It is a cyclic number.

It is not a de Polignac number, because 80858645 - 2⁴ = 80858629 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 80858596 and 80858605.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41861 + ... + 43749.

It is an arithmetic number, because the mean of its divisors is an integer number (6940080).

Almost surely, 2^80858645 is an apocalyptic number.

It is an amenable number.

80858645 is a deficient number, since it is larger than the sum of its proper divisors (30182635).

80858645 is a wasteful number, since it uses less digits than its factorization.

80858645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3124.

The product of its (nonzero) digits is 307200, while the sum is 44.

The square root of 80858645 is about 8992.1435153138. The cubic root of 80858645 is about 432.4230341843.

The spelling of 80858645 in words is "eighty million, eight hundred fifty-eight thousand, six hundred forty-five".