9939457 has 8 divisors (see below), whose sum is σ = 10867392. Its totient is φ = 9015600.

The previous prime is 9939403. The next prime is 9939463. The reversal of 9939457 is 7549399.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 9939457 - 2¹¹ = 9937409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9939497) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6588 + ... + 7954.

It is an arithmetic number, because the mean of its divisors is an integer number (1358424).

Almost surely, 2^9939457 is an apocalyptic number.

It is an amenable number.

9939457 is a deficient number, since it is larger than the sum of its proper divisors (927935).

9939457 is a wasteful number, since it uses less digits than its factorization.

9939457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2039.

The product of its digits is 306180, while the sum is 46.

The square root of 9939457 is about 3152.6904383399. The cubic root of 9939457 is about 215.0078021326.

The spelling of 9939457 in words is "nine million, nine hundred thirty-nine thousand, four hundred fifty-seven".