7919397 has 8 divisors (see below), whose sum is σ = 11732480. Its totient is φ = 5279580.

The previous prime is 7919389. The next prime is 7919413. The reversal of 7919397 is 7939197.

It is not a de Polignac number, because 7919397 - 2³ = 7919389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7919357) 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 7 ways as a sum of consecutive naturals, for example, 146629 + ... + 146682.

It is an arithmetic number, because the mean of its divisors is an integer number (1466560).

Almost surely, 2^7919397 is an apocalyptic number.

It is an amenable number.

7919397 is a deficient number, since it is larger than the sum of its proper divisors (3813083).

7919397 is a wasteful number, since it uses less digits than its factorization.

7919397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293320 (or 293314 counting only the distinct ones).

The product of its digits is 107163, while the sum is 45.

The square root of 7919397 is about 2814.1423204948. The cubic root of 7919397 is about 199.3260397725.

The spelling of 7919397 in words is "seven million, nine hundred nineteen thousand, three hundred ninety-seven".