7874923393 has 2 divisors, whose sum is σ = 7874923394. Its totient is φ = 7874923392.

The previous prime is 7874923351. The next prime is 7874923451. The reversal of 7874923393 is 3933294787.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5262486849 + 2612436544 = 72543^2 + 51112^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7874923393 is a prime.

It is not a weakly prime, because it can be changed into another prime (7874923093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3937461696 + 3937461697.

It is an arithmetic number, because the mean of its divisors is an integer number (3937461697).

Almost surely, 2^7874923393 is an apocalyptic number.

It is an amenable number.

7874923393 is a deficient number, since it is larger than the sum of its proper divisors (1).

7874923393 is an equidigital number, since it uses as much as digits as its factorization.

7874923393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6858432, while the sum is 55.

The square root of 7874923393 is about 88740.7651138979. The cubic root of 7874923393 is about 1989.5221526334.

The spelling of 7874923393 in words is "seven billion, eight hundred seventy-four million, nine hundred twenty-three thousand, three hundred ninety-three".