9042813 has 16 divisors (see below), whose sum is σ = 14427840. Its totient is φ = 5564592.

The previous prime is 9042797. The next prime is 9042829. The reversal of 9042813 is 3182409.

It is an interprime number because it is at equal distance from previous prime (9042797) and next prime (9042829).

It is not a de Polignac number, because 9042813 - 2⁴ = 9042797 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a d-powerful number, because it can be written as 9⁷ + 0 + 4¹¹ + 2¹⁵ + 8⁵ + 1 + 3 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9042413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12531 + ... + 13232.

It is an arithmetic number, because the mean of its divisors is an integer number (901740).

Almost surely, 2^9042813 is an apocalyptic number.

It is an amenable number.

9042813 is a deficient number, since it is larger than the sum of its proper divisors (5385027).

9042813 is a wasteful number, since it uses less digits than its factorization.

9042813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25785 (or 25779 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 9042813 is about 3007.1270342305. The cubic root of 9042813 is about 208.3376926377.

The spelling of 9042813 in words is "nine million, forty-two thousand, eight hundred thirteen".