730998407 has 2 divisors, whose sum is σ = 730998408. Its totient is φ = 730998406.

The previous prime is 730998371. The next prime is 730998431. The reversal of 730998407 is 704899037.

It is a strong prime.

It is an emirp because it is prime and its reverse (704899037) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 730998407 - 2¹⁰ = 730997383 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (730998497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 365499203 + 365499204.

It is an arithmetic number, because the mean of its divisors is an integer number (365499204).

Almost surely, 2^730998407 is an apocalyptic number.

730998407 is a deficient number, since it is larger than the sum of its proper divisors (1).

730998407 is an equidigital number, since it uses as much as digits as its factorization.

730998407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 381024, while the sum is 47.

The square root of 730998407 is about 27036.9822095588. The cubic root of 730998407 is about 900.8216393823.

It can be divided in two parts, 730 and 998407, that multiplied together give a triangular number (728837110 = T₃₈₁₇₉).

The spelling of 730998407 in words is "seven hundred thirty million, nine hundred ninety-eight thousand, four hundred seven".