998450671 has 2 divisors, whose sum is σ = 998450672. Its totient is φ = 998450670.

The previous prime is 998450653. The next prime is 998450701. The reversal of 998450671 is 176054899.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 998450671 - 2¹¹ = 998448623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (998450471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499225335 + 499225336.

It is an arithmetic number, because the mean of its divisors is an integer number (499225336).

Almost surely, 2^998450671 is an apocalyptic number.

998450671 is a deficient number, since it is larger than the sum of its proper divisors (1).

998450671 is an equidigital number, since it uses as much as digits as its factorization.

998450671 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 544320, while the sum is 49.

The square root of 998450671 is about 31598.2700634070. The cubic root of 998450671 is about 999.4832900568.

The spelling of 998450671 in words is "nine hundred ninety-eight million, four hundred fifty thousand, six hundred seventy-one".