8479442 has 4 divisors (see below), whose sum is σ = 12719166. Its totient is φ = 4239720.

The previous prime is 8479403. The next prime is 8479477. The reversal of 8479442 is 2449748.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 8462281 + 17161 = 2909^2 + 131^2 .

It is a d-powerful number, because it can be written as 8⁷ + 4⁶ + 7⁸ + 9⁶ + 4⁷ + 4⁸ + 2⁵ .

It is a junction number, because it is equal to n+sod(n) for n = 8479396 and 8479405.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2119859 + ... + 2119862.

Almost surely, 2^8479442 is an apocalyptic number.

8479442 is a deficient number, since it is larger than the sum of its proper divisors (4239724).

8479442 is a wasteful number, since it uses less digits than its factorization.

8479442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4239723.

The product of its digits is 64512, while the sum is 38.

The square root of 8479442 is about 2911.9481451427. The cubic root of 8479442 is about 203.9180915565.

The spelling of 8479442 in words is "eight million, four hundred seventy-nine thousand, four hundred forty-two".