9955394 has 4 divisors (see below), whose sum is σ = 14933094. Its totient is φ = 4977696.

The previous prime is 9955349. The next prime is 9955397. The reversal of 9955394 is 4935599.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4935599 = 2017 ⋅2447.

It can be written as a sum of positive squares in only one way, i.e., 9954025 + 1369 = 3155^2 + 37^2 .

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9955397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2488847 + ... + 2488850.

Almost surely, 2^9955394 is an apocalyptic number.

9955394 is a deficient number, since it is larger than the sum of its proper divisors (4977700).

9955394 is a wasteful number, since it uses less digits than its factorization.

9955394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4977699.

The product of its digits is 218700, while the sum is 44.

The square root of 9955394 is about 3155.2169497516. The cubic root of 9955394 is about 215.1226558102.

The spelling of 9955394 in words is "nine million, nine hundred fifty-five thousand, three hundred ninety-four".