86420534 has 4 divisors (see below), whose sum is σ = 129630804. Its totient is φ = 43210266.

The previous prime is 86420527. The next prime is 86420599. The reversal of 86420534 is 43502468.

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

It is a self number, because there is not a number n which added to its sum of digits gives 86420534.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21605132 + ... + 21605135.

It is an arithmetic number, because the mean of its divisors is an integer number (32407701).

Almost surely, 2^86420534 is an apocalyptic number.

86420534 is a deficient number, since it is larger than the sum of its proper divisors (43210270).

86420534 is a wasteful number, since it uses less digits than its factorization.

86420534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43210269.

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 86420534 is about 9296.2645186118. The cubic root of 86420534 is about 442.1187992400.

The spelling of 86420534 in words is "eighty-six million, four hundred twenty thousand, five hundred thirty-four".