9478869 has 4 divisors (see below), whose sum is σ = 12638496. Its totient is φ = 6319244.

The previous prime is 9478841. The next prime is 9478873. The reversal of 9478869 is 9688749.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 9478869 - 2⁵ = 9478837 is a prime.

It is a super-2 number, since 2×9478869² = 179697915038322, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9478879) 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, 1579809 + ... + 1579814.

It is an arithmetic number, because the mean of its divisors is an integer number (3159624).

Almost surely, 2^9478869 is an apocalyptic number.

It is an amenable number.

9478869 is a deficient number, since it is larger than the sum of its proper divisors (3159627).

9478869 is a wasteful number, since it uses less digits than its factorization.

9478869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3159626.

The product of its digits is 870912, while the sum is 51.

The square root of 9478869 is about 3078.7771923281. Note that the first 3 decimals coincide. The cubic root of 9478869 is about 211.6340324858.

The spelling of 9478869 in words is "nine million, four hundred seventy-eight thousand, eight hundred sixty-nine".