86426520 has 32 divisors (see below), whose sum is σ = 259279920. Its totient is φ = 23047040.

The previous prime is 86426519. The next prime is 86426531. The reversal of 86426520 is 2562468.

It is a congruent number.

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, 359991 + ... + 360230.

Almost surely, 2^86426520 is an apocalyptic number.

It is an amenable number.

86426520 is an abundant number, since it is smaller than the sum of its proper divisors (172853400).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

86426520 is a wasteful number, since it uses less digits than its factorization.

86426520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720235 (or 720231 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 86426520 is about 9296.5864703126. The cubic root of 86426520 is about 442.1290069298.

Adding to 86426520 its reverse (2562468), we get a palindrome (88988988).

The spelling of 86426520 in words is "eighty-six million, four hundred twenty-six thousand, five hundred twenty".