86603861 has 4 divisors (see below), whose sum is σ = 86629824. Its totient is φ = 86577900.

The previous prime is 86603851. The next prime is 86603887. The reversal of 86603861 is 16830668.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86603861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86603851) 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 3 ways as a sum of consecutive naturals, for example, 7085 + ... + 14946.

It is an arithmetic number, because the mean of its divisors is an integer number (21657456).

Almost surely, 2^86603861 is an apocalyptic number.

It is an amenable number.

86603861 is a deficient number, since it is larger than the sum of its proper divisors (25963).

86603861 is a wasteful number, since it uses less digits than its factorization.

86603861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25962.

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 86603861 is about 9306.1195457613. The cubic root of 86603861 is about 442.4312059630.

It can be divided in two parts, 8660 and 3861, that added together give a palindrome (12521).

The spelling of 86603861 in words is "eighty-six million, six hundred three thousand, eight hundred sixty-one".