8398946 has 4 divisors (see below), whose sum is σ = 12598422. Its totient is φ = 4199472.

The previous prime is 8398937. The next prime is 8398961. The reversal of 8398946 is 6498938.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6498938 = 2 ⋅3249469.

It can be written as a sum of positive squares in only one way, i.e., 7924225 + 474721 = 2815^2 + 689^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 8398946.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2099735 + ... + 2099738.

Almost surely, 2^8398946 is an apocalyptic number.

8398946 is a deficient number, since it is larger than the sum of its proper divisors (4199476).

8398946 is a wasteful number, since it uses less digits than its factorization.

8398946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4199475.

The product of its digits is 373248, while the sum is 47.

The square root of 8398946 is about 2898.0935112587. The cubic root of 8398946 is about 203.2707687711.

The spelling of 8398946 in words is "eight million, three hundred ninety-eight thousand, nine hundred forty-six".