545698399 has 2 divisors, whose sum is σ = 545698400. Its totient is φ = 545698398.

The previous prime is 545698393. The next prime is 545698457. The reversal of 545698399 is 993896545.

It is an a-pointer prime, because the next prime (545698457) can be obtained adding 545698399 to its sum of digits (58).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 545698399 - 2²⁹ = 8827487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (545698393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272849199 + 272849200.

It is an arithmetic number, because the mean of its divisors is an integer number (272849200).

Almost surely, 2^545698399 is an apocalyptic number.

545698399 is a deficient number, since it is larger than the sum of its proper divisors (1).

545698399 is an equidigital number, since it uses as much as digits as its factorization.

545698399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10497600, while the sum is 58.

The square root of 545698399 is about 23360.1883340011. The cubic root of 545698399 is about 817.1796817937.

The spelling of 545698399 in words is "five hundred forty-five million, six hundred ninety-eight thousand, three hundred ninety-nine".