1406192897 has 2 divisors, whose sum is σ = 1406192898. Its totient is φ = 1406192896.

The previous prime is 1406192857. The next prime is 1406192899. The reversal of 1406192897 is 7982916041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 997991281 + 408201616 = 31591^2 + 20204^2 .

It is a cyclic number.

It is not a de Polignac number, because 1406192897 - 2³⁰ = 332451073 is a prime.

Together with 1406192899, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1406192899) 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 as a sum of consecutive naturals, namely, 703096448 + 703096449.

It is an arithmetic number, because the mean of its divisors is an integer number (703096449).

Almost surely, 2^1406192897 is an apocalyptic number.

It is an amenable number.

1406192897 is a deficient number, since it is larger than the sum of its proper divisors (1).

1406192897 is an equidigital number, since it uses as much as digits as its factorization.

1406192897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 217728, while the sum is 47.

The square root of 1406192897 is about 37499.2386189373. The cubic root of 1406192897 is about 1120.3360218915.

The spelling of 1406192897 in words is "one billion, four hundred six million, one hundred ninety-two thousand, eight hundred ninety-seven".