1447951697 has 2 divisors, whose sum is σ = 1447951698. Its totient is φ = 1447951696.

The previous prime is 1447951669. The next prime is 1447951717. The reversal of 1447951697 is 7961597441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1420083856 + 27867841 = 37684^2 + 5279^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1447951697 is a prime.

It is not a weakly prime, because it can be changed into another prime (1447951667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 723975848 + 723975849.

It is an arithmetic number, because the mean of its divisors is an integer number (723975849).

Almost surely, 2^1447951697 is an apocalyptic number.

It is an amenable number.

1447951697 is a deficient number, since it is larger than the sum of its proper divisors (1).

1447951697 is an equidigital number, since it uses as much as digits as its factorization.

1447951697 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1905120, while the sum is 53.

The square root of 1447951697 is about 38051.9604882587. The cubic root of 1447951697 is about 1131.3179852226.

The spelling of 1447951697 in words is "one billion, four hundred forty-seven million, nine hundred fifty-one thousand, six hundred ninety-seven".