86424899 has 6 divisors (see below), whose sum is σ = 94315356. Its totient is φ = 78540060.

The previous prime is 86424893. The next prime is 86424907. The reversal of 86424899 is 99842468.

It is a happy number.

It is not a de Polignac number, because 86424899 - 2¹⁶ = 86359363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86424893) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 29432 + ... + 32234.

It is an arithmetic number, because the mean of its divisors is an integer number (15719226).

Almost surely, 2^86424899 is an apocalyptic number.

86424899 is a deficient number, since it is larger than the sum of its proper divisors (7890457).

86424899 is an frugal number, since it uses more digits than its factorization.

86424899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5617 (or 2814 counting only the distinct ones).

The product of its digits is 995328, while the sum is 50.

The square root of 86424899 is about 9296.4992873662. The cubic root of 86424899 is about 442.1262427490.

Subtracting 86424899 from its reverse (99842468), we obtain a square (13417569 = 3663²).

The spelling of 86424899 in words is "eighty-six million, four hundred twenty-four thousand, eight hundred ninety-nine".