13000973 has 2 divisors, whose sum is σ = 13000974. Its totient is φ = 13000972.

The previous prime is 13000963. The next prime is 13000979. The reversal of 13000973 is 37900031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12974404 + 26569 = 3602^2 + 163^2 .

It is a cyclic number.

It is not a de Polignac number, because 13000973 - 2⁶ = 13000909 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13000979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6500486 + 6500487.

It is an arithmetic number, because the mean of its divisors is an integer number (6500487).

Almost surely, 2^13000973 is an apocalyptic number.

It is an amenable number.

13000973 is a deficient number, since it is larger than the sum of its proper divisors (1).

13000973 is an equidigital number, since it uses as much as digits as its factorization.

13000973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 567, while the sum is 23.

The square root of 13000973 is about 3605.6862037621. The cubic root of 13000973 is about 235.1393349043.

The spelling of 13000973 in words is "thirteen million, nine hundred seventy-three", and thus it is an aban number.