86283257 has 4 divisors (see below), whose sum is σ = 86303220. Its totient is φ = 86263296.

The previous prime is 86283227. The next prime is 86283259. The reversal of 86283257 is 75238268.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 63425296 + 22857961 = 7964^2 + 4781^2 .

It is a cyclic number.

It is not a de Polignac number, because 86283257 - 2²² = 82088953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86283259) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 488 + ... + 13145.

It is an arithmetic number, because the mean of its divisors is an integer number (21575805).

Almost surely, 2^86283257 is an apocalyptic number.

It is an amenable number.

86283257 is a deficient number, since it is larger than the sum of its proper divisors (19963).

86283257 is a wasteful number, since it uses less digits than its factorization.

86283257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19962.

The product of its digits is 161280, while the sum is 41.

The square root of 86283257 is about 9288.8781346296. The cubic root of 86283257 is about 441.8845767147.

The spelling of 86283257 in words is "eighty-six million, two hundred eighty-three thousand, two hundred fifty-seven".