7897023679 has 2 divisors, whose sum is σ = 7897023680. Its totient is φ = 7897023678.

The previous prime is 7897023677. The next prime is 7897023737. The reversal of 7897023679 is 9763207987.

It is an a-pointer prime, because the next prime (7897023737) can be obtained adding 7897023679 to its sum of digits (58).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7897023679 - 2¹ = 7897023677 is a prime.

Together with 7897023677, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7897023677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3948511839 + 3948511840.

It is an arithmetic number, because the mean of its divisors is an integer number (3948511840).

Almost surely, 2^7897023679 is an apocalyptic number.

7897023679 is a deficient number, since it is larger than the sum of its proper divisors (1).

7897023679 is an equidigital number, since it uses as much as digits as its factorization.

7897023679 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8001504, while the sum is 58.

The square root of 7897023679 is about 88865.1994821370. The cubic root of 7897023679 is about 1991.3815544614.

The spelling of 7897023679 in words is "seven billion, eight hundred ninety-seven million, twenty-three thousand, six hundred seventy-nine".