598828421 has 2 divisors, whose sum is σ = 598828422. Its totient is φ = 598828420.

The previous prime is 598828409. The next prime is 598828423. The reversal of 598828421 is 124828895.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 512524321 + 86304100 = 22639^2 + 9290^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-598828421 is a prime.

Together with 598828423, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (598828423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 299414210 + 299414211.

It is an arithmetic number, because the mean of its divisors is an integer number (299414211).

Almost surely, 2^598828421 is an apocalyptic number.

It is an amenable number.

598828421 is a deficient number, since it is larger than the sum of its proper divisors (1).

598828421 is an equidigital number, since it uses as much as digits as its factorization.

598828421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 368640, while the sum is 47.

The square root of 598828421 is about 24470.9709860479. The cubic root of 598828421 is about 842.8833364905.

The spelling of 598828421 in words is "five hundred ninety-eight million, eight hundred twenty-eight thousand, four hundred twenty-one".