80858805 has 8 divisors (see below), whose sum is σ = 129374112. Its totient is φ = 43124688.

The previous prime is 80858803. The next prime is 80858809. The reversal of 80858805 is 50885808.

80858805 = 903² + 904² + ... + 992².

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

It is not a de Polignac number, because 80858805 - 2¹ = 80858803 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80858803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2695279 + ... + 2695308.

It is an arithmetic number, because the mean of its divisors is an integer number (16171764).

Almost surely, 2^80858805 is an apocalyptic number.

It is an amenable number.

80858805 is a deficient number, since it is larger than the sum of its proper divisors (48515307).

80858805 is a wasteful number, since it uses less digits than its factorization.

80858805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5390595.

The product of its (nonzero) digits is 102400, while the sum is 42.

The square root of 80858805 is about 8992.1524119646. The cubic root of 80858805 is about 432.4233194048.

The spelling of 80858805 in words is "eighty million, eight hundred fifty-eight thousand, eight hundred five".