86806503 has 12 divisors (see below), whose sum is σ = 143299728. Its totient is φ = 49603680.

The previous prime is 86806493. The next prime is 86806507. The reversal of 86806503 is 30560868.

It is not a de Polignac number, because 86806503 - 2⁹ = 86805991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86806507) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 688878 + ... + 689003.

It is an arithmetic number, because the mean of its divisors is an integer number (11941644).

Almost surely, 2^86806503 is an apocalyptic number.

86806503 is a deficient number, since it is larger than the sum of its proper divisors (56493225).

86806503 is a wasteful number, since it uses less digits than its factorization.

86806503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1377894 (or 1377891 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 86806503 is about 9317.0007513148. Note that the first 3 decimals coincide. The cubic root of 86806503 is about 442.7760147162.

The spelling of 86806503 in words is "eighty-six million, eight hundred six thousand, five hundred three".