86803257 has 8 divisors (see below), whose sum is σ = 117465376. Its totient is φ = 57004992.

The previous prime is 86803253. The next prime is 86803291. The reversal of 86803257 is 75230868.

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

It is not a de Polignac number, because 86803257 - 2² = 86803253 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86803253) 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, 215728 + ... + 216129.

It is an arithmetic number, because the mean of its divisors is an integer number (14683172).

Almost surely, 2^86803257 is an apocalyptic number.

It is an amenable number.

86803257 is a deficient number, since it is larger than the sum of its proper divisors (30662119).

86803257 is a wasteful number, since it uses less digits than its factorization.

86803257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431927.

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 86803257 is about 9316.8265519972. The cubic root of 86803257 is about 442.7704956640.

The spelling of 86803257 in words is "eighty-six million, eight hundred three thousand, two hundred fifty-seven".