80857395 has 24 divisors (see below), whose sum is σ = 143943696. Its totient is φ = 41957568.

The previous prime is 80857379. The next prime is 80857411. The reversal of 80857395 is 59375808.

It is an interprime number because it is at equal distance from previous prime (80857379) and next prime (80857411).

It is not a de Polignac number, because 80857395 - 2⁴ = 80857379 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 80857395.

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 23 ways as a sum of consecutive naturals, for example, 22617 + ... + 25946.

It is an arithmetic number, because the mean of its divisors is an integer number (5997654).

Almost surely, 2^80857395 is an apocalyptic number.

80857395 is a deficient number, since it is larger than the sum of its proper divisors (63086301).

80857395 is a wasteful number, since it uses less digits than its factorization.

80857395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48611 (or 48608 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 45.

The square root of 80857395 is about 8992.0740099267. The cubic root of 80857395 is about 432.4208058859.

The spelling of 80857395 in words is "eighty million, eight hundred fifty-seven thousand, three hundred ninety-five".