86421146 has 16 divisors (see below), whose sum is σ = 148323840. Its totient is φ = 36994320.

The previous prime is 86421119. The next prime is 86421151. The reversal of 86421146 is 64112468.

It is a super-2 number, since 2×86421146² = 14937228951906632, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10760 + ... + 16988.

It is an arithmetic number, because the mean of its divisors is an integer number (9270240).

Almost surely, 2^86421146 is an apocalyptic number.

86421146 is a deficient number, since it is larger than the sum of its proper divisors (61902694).

86421146 is a wasteful number, since it uses less digits than its factorization.

86421146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7229.

The product of its digits is 9216, while the sum is 32.

The square root of 86421146 is about 9296.2974350007. The cubic root of 86421146 is about 442.1198428811.

The spelling of 86421146 in words is "eighty-six million, four hundred twenty-one thousand, one hundred forty-six".