9438855 has 32 divisors (see below), whose sum is σ = 15966720. Its totient is φ = 4752000.

The previous prime is 9438853. The next prime is 9438881. The reversal of 9438855 is 5588349.

9438855 = T₁₃₉ + T₁₄₀ + ... + T₃₈₉.

It is not a de Polignac number, because 9438855 - 2¹ = 9438853 is a prime.

It is a super-2 number, since 2×9438855² = 178183967422050, which contains 22 as substring.

9438855 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9438851) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37480 + ... + 37730.

It is an arithmetic number, because the mean of its divisors is an integer number (498960).

Almost surely, 2^9438855 is an apocalyptic number.

9438855 is a deficient number, since it is larger than the sum of its proper divisors (6527865).

9438855 is a wasteful number, since it uses less digits than its factorization.

9438855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391.

The product of its digits is 172800, while the sum is 42.

The square root of 9438855 is about 3072.2719606181. The cubic root of 9438855 is about 211.3358158866.

The spelling of 9438855 in words is "nine million, four hundred thirty-eight thousand, eight hundred fifty-five".