7623691897 has 2 divisors, whose sum is σ = 7623691898. Its totient is φ = 7623691896.

The previous prime is 7623691877. The next prime is 7623691909. The reversal of 7623691897 is 7981963267.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7062049296 + 561642601 = 84036^2 + 23699^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7623691897 is a prime.

It is not a weakly prime, because it can be changed into another prime (7623691807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3811845948 + 3811845949.

It is an arithmetic number, because the mean of its divisors is an integer number (3811845949).

Almost surely, 2^7623691897 is an apocalyptic number.

It is an amenable number.

7623691897 is a deficient number, since it is larger than the sum of its proper divisors (1).

7623691897 is an equidigital number, since it uses as much as digits as its factorization.

7623691897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6858432, while the sum is 58.

The square root of 7623691897 is about 87313.7554856049. The cubic root of 7623691897 is about 1968.1360311518.

The spelling of 7623691897 in words is "seven billion, six hundred twenty-three million, six hundred ninety-one thousand, eight hundred ninety-seven".