7923897 has 12 divisors (see below), whose sum is σ = 11481600. Its totient is φ = 5266008.

The previous prime is 7923869. The next prime is 7923907. The reversal of 7923897 is 7983297.

It is not a de Polignac number, because 7923897 - 2¹² = 7919801 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (7923827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2104 + ... + 4502.

It is an arithmetic number, because the mean of its divisors is an integer number (956800).

Almost surely, 2^7923897 is an apocalyptic number.

It is an amenable number.

7923897 is a deficient number, since it is larger than the sum of its proper divisors (3557703).

7923897 is a wasteful number, since it uses less digits than its factorization.

7923897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2772 (or 2769 counting only the distinct ones).

The product of its digits is 190512, while the sum is 45.

The square root of 7923897 is about 2814.9417400721. The cubic root of 7923897 is about 199.3637866421.

The spelling of 7923897 in words is "seven million, nine hundred twenty-three thousand, eight hundred ninety-seven".