9401939 has 4 divisors (see below), whose sum is σ = 9485256. Its totient is φ = 9318624.

The previous prime is 9401921. The next prime is 9401947. The reversal of 9401939 is 9391049.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9391049 = 409 ⋅22961.

It is a cyclic number.

It is not a de Polignac number, because 9401939 - 2¹⁶ = 9336403 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9401899 and 9401908.

It is not an unprimeable number, because it can be changed into a prime (9401839) 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, 41489 + ... + 41714.

It is an arithmetic number, because the mean of its divisors is an integer number (2371314).

Almost surely, 2^9401939 is an apocalyptic number.

9401939 is a deficient number, since it is larger than the sum of its proper divisors (83317).

9401939 is a wasteful number, since it uses less digits than its factorization.

9401939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83316.

The product of its (nonzero) digits is 8748, while the sum is 35.

The square root of 9401939 is about 3066.2581430793. The cubic root of 9401939 is about 211.0599396956.

The spelling of 9401939 in words is "nine million, four hundred one thousand, nine hundred thirty-nine".