998000357 has 2 divisors, whose sum is σ = 998000358. Its totient is φ = 998000356.

The previous prime is 998000257. The next prime is 998000363. The reversal of 998000357 is 753000899.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 812877121 + 185123236 = 28511^2 + 13606^2 .

It is a cyclic number.

It is not a de Polignac number, because 998000357 - 2¹⁸ = 997738213 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 (998000057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499000178 + 499000179.

It is an arithmetic number, because the mean of its divisors is an integer number (499000179).

Almost surely, 2^998000357 is an apocalyptic number.

It is an amenable number.

998000357 is a deficient number, since it is larger than the sum of its proper divisors (1).

998000357 is an equidigital number, since it uses as much as digits as its factorization.

998000357 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 68040, while the sum is 41.

The square root of 998000357 is about 31591.1436481809. The cubic root of 998000357 is about 999.3330075533. Note that the first 3 decimals are identical.

The spelling of 998000357 in words is "nine hundred ninety-eight million, three hundred fifty-seven", and thus it is an aban number.