8399544 has 16 divisors (see below), whose sum is σ = 20998920. Its totient is φ = 2799840.

The previous prime is 8399533. The next prime is 8399551. The reversal of 8399544 is 4459938.

It is an Ulam number.

It is a d-powerful number, because it can be written as 8³ + 3⁸ + 9 + 9³ + 5⁵ + 4¹¹ + 4¹¹ .

It is a junction number, because it is equal to n+sod(n) for n = 8399496 and 8399505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 174967 + ... + 175014.

Almost surely, 2^8399544 is an apocalyptic number.

It is an amenable number.

8399544 is an abundant number, since it is smaller than the sum of its proper divisors (12599376).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8399544 is a wasteful number, since it uses less digits than its factorization.

8399544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349990 (or 349986 counting only the distinct ones).

The product of its digits is 155520, while the sum is 42.

The square root of 8399544 is about 2898.1966806965. The cubic root of 8399544 is about 203.2755929096.

The spelling of 8399544 in words is "eight million, three hundred ninety-nine thousand, five hundred forty-four".