9423979 has 4 divisors (see below), whose sum is σ = 9454984. Its totient is φ = 9392976.

The previous prime is 9423971. The next prime is 9423991. The reversal of 9423979 is 9793249.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9793249 = 47 ⋅208367.

It is a cyclic number.

It is not a de Polignac number, because 9423979 - 2³ = 9423971 is a prime.

It is a super-2 number, since 2×9423979² = 177622760384882, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9423971) 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, 15042 + ... + 15655.

It is an arithmetic number, because the mean of its divisors is an integer number (2363746).

Almost surely, 2^9423979 is an apocalyptic number.

9423979 is a deficient number, since it is larger than the sum of its proper divisors (31005).

9423979 is a wasteful number, since it uses less digits than its factorization.

9423979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31004.

The product of its digits is 122472, while the sum is 43.

The square root of 9423979 is about 3069.8499963353. The cubic root of 9423979 is about 211.2247330400.

The spelling of 9423979 in words is "nine million, four hundred twenty-three thousand, nine hundred seventy-nine".