8947775 has 12 divisors (see below), whose sum is σ = 11253744. Its totient is φ = 7057400.

The previous prime is 8947769. The next prime is 8947789. The reversal of 8947775 is 5777498.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is not a de Polignac number, because 8947775 - 2¹² = 8943679 is a prime.

It is a d-powerful number, because it can be written as 8⁷ + 9² + 4⁹ + 7² + 7⁷ + 7⁸ + 5 .

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 125990 + ... + 126060.

It is an arithmetic number, because the mean of its divisors is an integer number (937812).

Almost surely, 2^8947775 is an apocalyptic number.

8947775 is a deficient number, since it is larger than the sum of its proper divisors (2305969).

8947775 is an frugal number, since it uses more digits than its factorization.

8947775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223 (or 76 counting only the distinct ones).

The product of its digits is 493920, while the sum is 47.

The square root of 8947775 is about 2991.2831694776. The cubic root of 8947775 is about 207.6052594131.

The spelling of 8947775 in words is "eight million, nine hundred forty-seven thousand, seven hundred seventy-five".