9123977 has 4 divisors (see below), whose sum is σ = 9133056. Its totient is φ = 9114900.

The previous prime is 9123967. The next prime is 9123979. The reversal of 9123977 is 7793219.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 7793219 = 7 ⋅1113317.

It is a cyclic number.

It is not a de Polignac number, because 9123977 - 2⁸ = 9123721 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9123977.

It is not an unprimeable number, because it can be changed into a prime (9123979) 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, 2813 + ... + 5114.

It is an arithmetic number, because the mean of its divisors is an integer number (2283264).

Almost surely, 2^9123977 is an apocalyptic number.

It is an amenable number.

9123977 is a deficient number, since it is larger than the sum of its proper divisors (9079).

9123977 is a wasteful number, since it uses less digits than its factorization.

9123977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9078.

The product of its digits is 23814, while the sum is 38.

The square root of 9123977 is about 3020.5921604877. The cubic root of 9123977 is about 208.9591504606.

The spelling of 9123977 in words is "nine million, one hundred twenty-three thousand, nine hundred seventy-seven".