998596051 has 2 divisors, whose sum is σ = 998596052. Its totient is φ = 998596050.

The previous prime is 998595971. The next prime is 998596061. The reversal of 998596051 is 150695899.

It is a strong prime.

It is an emirp because it is prime and its reverse (150695899) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 998596051 - 2¹³ = 998587859 is a prime.

It is equal to p_50779978 and since 998596051 and 50779978 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 998596051.

It is not a weakly prime, because it can be changed into another prime (998596061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499298025 + 499298026.

It is an arithmetic number, because the mean of its divisors is an integer number (499298026).

Almost surely, 2^998596051 is an apocalyptic number.

998596051 is a deficient number, since it is larger than the sum of its proper divisors (1).

998596051 is an equidigital number, since it uses as much as digits as its factorization.

998596051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 874800, while the sum is 52.

The square root of 998596051 is about 31600.5704220668. The cubic root of 998596051 is about 999.5317978209.

The spelling of 998596051 in words is "nine hundred ninety-eight million, five hundred ninety-six thousand, fifty-one".