1297086473 has 2 divisors, whose sum is σ = 1297086474. Its totient is φ = 1297086472.

The previous prime is 1297086409. The next prime is 1297086481. The reversal of 1297086473 is 3746807921.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1289671744 + 7414729 = 35912^2 + 2723^2 .

It is a cyclic number.

It is not a de Polignac number, because 1297086473 - 2⁶ = 1297086409 is a prime.

It is not a weakly prime, because it can be changed into another prime (1297086073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 648543236 + 648543237.

It is an arithmetic number, because the mean of its divisors is an integer number (648543237).

Almost surely, 2^1297086473 is an apocalyptic number.

It is an amenable number.

1297086473 is a deficient number, since it is larger than the sum of its proper divisors (1).

1297086473 is an equidigital number, since it uses as much as digits as its factorization.

1297086473 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 508032, while the sum is 47.

The square root of 1297086473 is about 36015.0867415310. The cubic root of 1297086473 is about 1090.5769391913.

The spelling of 1297086473 in words is "one billion, two hundred ninety-seven million, eighty-six thousand, four hundred seventy-three".