86503530 has 32 divisors (see below), whose sum is σ = 212439744. Its totient is φ = 22530816.

The previous prime is 86503511. The next prime is 86503537. The reversal of 86503530 is 3530568.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (86503537) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32239 + ... + 34818.

It is an arithmetic number, because the mean of its divisors is an integer number (6638742).

Almost surely, 2^86503530 is an apocalyptic number.

86503530 is an abundant number, since it is smaller than the sum of its proper divisors (125936214).

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

86503530 is a wasteful number, since it uses less digits than its factorization.

86503530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67110.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 86503530 is about 9300.7273909087. The cubic root of 86503530 is about 442.2602870313.

The spelling of 86503530 in words is "eighty-six million, five hundred three thousand, five hundred thirty".