998814727 has 2 divisors, whose sum is σ = 998814728. Its totient is φ = 998814726.

The previous prime is 998814701. The next prime is 998814731. The reversal of 998814727 is 727418899.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 998814727 - 2²³ = 990426119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (998814737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499407363 + 499407364.

It is an arithmetic number, because the mean of its divisors is an integer number (499407364).

Almost surely, 2^998814727 is an apocalyptic number.

998814727 is a deficient number, since it is larger than the sum of its proper divisors (1).

998814727 is an equidigital number, since it uses as much as digits as its factorization.

998814727 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2032128, while the sum is 55.

The square root of 998814727 is about 31604.0302335003. The cubic root of 998814727 is about 999.6047528002.

The spelling of 998814727 in words is "nine hundred ninety-eight million, eight hundred fourteen thousand, seven hundred twenty-seven".