43407000397 has 2 divisors, whose sum is σ = 43407000398. Its totient is φ = 43407000396.

The previous prime is 43407000323. The next prime is 43407000409. The reversal of 43407000397 is 79300070434.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22314085641 + 21092914756 = 149379^2 + 145234^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43407000397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43407000997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21703500198 + 21703500199.

It is an arithmetic number, because the mean of its divisors is an integer number (21703500199).

Almost surely, 2^43407000397 is an apocalyptic number.

It is an amenable number.

43407000397 is a deficient number, since it is larger than the sum of its proper divisors (1).

43407000397 is an equidigital number, since it uses as much as digits as its factorization.

43407000397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 63504, while the sum is 37.

The spelling of 43407000397 in words is "forty-three billion, four hundred seven million, three hundred ninety-seven", and thus it is an aban number.