9941399 has 4 divisors (see below), whose sum is σ = 10706136. Its totient is φ = 9176664.

The previous prime is 9941383. The next prime is 9941431. The reversal of 9941399 is 9931499.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 9941399 - 2⁴ = 9941383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9941599) 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, 382349 + ... + 382374.

It is an arithmetic number, because the mean of its divisors is an integer number (2676534).

Almost surely, 2^9941399 is an apocalyptic number.

9941399 is a deficient number, since it is larger than the sum of its proper divisors (764737).

9941399 is a wasteful number, since it uses less digits than its factorization.

9941399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 764736.

The product of its digits is 78732, while the sum is 44.

The square root of 9941399 is about 3152.9984142083. The cubic root of 9941399 is about 215.0218041705.

The spelling of 9941399 in words is "nine million, nine hundred forty-one thousand, three hundred ninety-nine".