86221522 has 8 divisors (see below), whose sum is σ = 130047372. Its totient is φ = 42872400.

The previous prime is 86221517. The next prime is 86221529. The reversal of 86221522 is 22512268.

It can be written as a sum of positive squares in 2 ways, for example, as 80982001 + 5239521 = 8999^2 + 2289^2 .

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

It is not an unprimeable number, because it can be changed into a prime (86221529) 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, 118729 + ... + 119452.

Almost surely, 2^86221522 is an apocalyptic number.

86221522 is a deficient number, since it is larger than the sum of its proper divisors (43825850).

86221522 is a wasteful number, since it uses less digits than its factorization.

86221522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238364.

The product of its digits is 3840, while the sum is 28.

The square root of 86221522 is about 9285.5544799436. The cubic root of 86221522 is about 441.7791632427.

The spelling of 86221522 in words is "eighty-six million, two hundred twenty-one thousand, five hundred twenty-two".