8442975 has 12 divisors (see below), whose sum is σ = 13959176. Its totient is φ = 4502880.

The previous prime is 8442971. The next prime is 8442979. The reversal of 8442975 is 5792448.

It is an interprime number because it is at equal distance from previous prime (8442971) and next prime (8442979).

It is not a de Polignac number, because 8442975 - 2² = 8442971 is a prime.

It is a Duffinian number.

8442975 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8442971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56212 + ... + 56361.

Almost surely, 2^8442975 is an apocalyptic number.

8442975 is a deficient number, since it is larger than the sum of its proper divisors (5516201).

8442975 is a wasteful number, since it uses less digits than its factorization.

8442975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112586 (or 112581 counting only the distinct ones).

The product of its digits is 80640, while the sum is 39.

The square root of 8442975 is about 2905.6797827703. The cubic root of 8442975 is about 203.6253456095.

The spelling of 8442975 in words is "eight million, four hundred forty-two thousand, nine hundred seventy-five".