998485451 has 2 divisors, whose sum is σ = 998485452. Its totient is φ = 998485450.

The previous prime is 998485427. The next prime is 998485483. The reversal of 998485451 is 154584899.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 998485451 - 2¹⁰ = 998484427 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 998485393 and 998485402.

It is not a weakly prime, because it can be changed into another prime (998485651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499242725 + 499242726.

It is an arithmetic number, because the mean of its divisors is an integer number (499242726).

Almost surely, 2^998485451 is an apocalyptic number.

998485451 is a deficient number, since it is larger than the sum of its proper divisors (1).

998485451 is an equidigital number, since it uses as much as digits as its factorization.

998485451 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2073600, while the sum is 53.

The square root of 998485451 is about 31598.8204051987. The cubic root of 998485451 is about 999.4948952455.

The spelling of 998485451 in words is "nine hundred ninety-eight million, four hundred eighty-five thousand, four hundred fifty-one".