830398453 has 2 divisors, whose sum is σ = 830398454. Its totient is φ = 830398452.

The previous prime is 830398423. The next prime is 830398487. The reversal of 830398453 is 354893038.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 817845604 + 12552849 = 28598^2 + 3543^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-830398453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (830398423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 415199226 + 415199227.

It is an arithmetic number, because the mean of its divisors is an integer number (415199227).

Almost surely, 2^830398453 is an apocalyptic number.

It is an amenable number.

830398453 is a deficient number, since it is larger than the sum of its proper divisors (1).

830398453 is an equidigital number, since it uses as much as digits as its factorization.

830398453 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 311040, while the sum is 43.

The square root of 830398453 is about 28816.6350048023. The cubic root of 830398453 is about 939.9299981823.

The spelling of 830398453 in words is "eight hundred thirty million, three hundred ninety-eight thousand, four hundred fifty-three".