8398413 has 6 divisors (see below), whose sum is σ = 12131054. Its totient is φ = 5598936.

The previous prime is 8398409. The next prime is 8398421. The reversal of 8398413 is 3148938.

It can be written as a sum of positive squares in only one way, i.e., 8398404 + 9 = 2898^2 + 3^2 .

It is not a de Polignac number, because 8398413 - 2² = 8398409 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8398483) 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, 466570 + ... + 466587.

Almost surely, 2^8398413 is an apocalyptic number.

It is an amenable number.

8398413 is a deficient number, since it is larger than the sum of its proper divisors (3732641).

8398413 is a wasteful number, since it uses less digits than its factorization.

8398413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 933163 (or 933160 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 8398413 is about 2898.0015527946. The cubic root of 8398413 is about 203.2664688026.

It can be divided in two parts, 839 and 8413, that multiplied together give a palindrome (7058507).

The spelling of 8398413 in words is "eight million, three hundred ninety-eight thousand, four hundred thirteen".