86645403 has 32 divisors (see below), whose sum is σ = 142714880. Its totient is φ = 51593760.

The previous prime is 86645401. The next prime is 86645441. The reversal of 86645403 is 30454668.

86645403 is a `hidden beast` number, since 8 + 6 + 645 + 4 + 0 + 3 = 666.

It is not a de Polignac number, because 86645403 - 2¹ = 86645401 is a prime.

It is a super-2 number, since 2×86645403² = 15014851722064818, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86645401) by changing a digit.

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 in 31 ways as a sum of consecutive naturals, for example, 6900 + ... + 14862.

It is an arithmetic number, because the mean of its divisors is an integer number (4459840).

Almost surely, 2^86645403 is an apocalyptic number.

86645403 is a deficient number, since it is larger than the sum of its proper divisors (56069477).

86645403 is a wasteful number, since it uses less digits than its factorization.

86645403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8016 (or 8010 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The square root of 86645403 is about 9308.3512503558. The cubic root of 86645403 is about 442.5019362168.

The spelling of 86645403 in words is "eighty-six million, six hundred forty-five thousand, four hundred three".