9478765 has 4 divisors (see below), whose sum is σ = 11374524. Its totient is φ = 7583008.

The previous prime is 9478751. The next prime is 9478769. The reversal of 9478765 is 5678749.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5678749 = 743 ⋅7643.

It can be written as a sum of positive squares in 2 ways, for example, as 1447209 + 8031556 = 1203^2 + 2834^2 .

It is a cyclic number.

It is not a de Polignac number, because 9478765 - 2¹¹ = 9476717 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9478769) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 947872 + ... + 947881.

It is an arithmetic number, because the mean of its divisors is an integer number (2843631).

Almost surely, 2^9478765 is an apocalyptic number.

It is an amenable number.

9478765 is a deficient number, since it is larger than the sum of its proper divisors (1895759).

9478765 is a wasteful number, since it uses less digits than its factorization.

9478765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1895758.

The product of its digits is 423360, while the sum is 46.

The square root of 9478765 is about 3078.7603024594. The cubic root of 9478765 is about 211.6332584827.

The spelling of 9478765 in words is "nine million, four hundred seventy-eight thousand, seven hundred sixty-five".