86449851 has 12 divisors (see below), whose sum is σ = 124975240. Its totient is φ = 57585600.

The previous prime is 86449849. The next prime is 86449861. The reversal of 86449851 is 15894468.

It is not a de Polignac number, because 86449851 - 2¹ = 86449849 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 86449797 and 86449806.

It is not an unprimeable number, because it can be changed into a prime (86449861) 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, 10176 + ... + 16626.

Almost surely, 2^86449851 is an apocalyptic number.

86449851 is a deficient number, since it is larger than the sum of its proper divisors (38525389).

86449851 is a wasteful number, since it uses less digits than its factorization.

86449851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7946 (or 7943 counting only the distinct ones).

The product of its digits is 276480, while the sum is 45.

The square root of 86449851 is about 9297.8412010531. The cubic root of 86449851 is about 442.1687878666.

The spelling of 86449851 in words is "eighty-six million, four hundred forty-nine thousand, eight hundred fifty-one".