998854097 has 6 divisors (see below), whose sum is σ = 1044171282. Its totient is φ = 955425152.

The previous prime is 998854093. The next prime is 998854099. The reversal of 998854097 is 790458899.

It can be written as a sum of positive squares in only one way, i.e., 932935936 + 65918161 = 30544^2 + 8119^2 .

It is not a de Polignac number, because 998854097 - 2² = 998854093 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (998854093) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 943568 + ... + 944625.

It is an arithmetic number, because the mean of its divisors is an integer number (174028547).

Almost surely, 2^998854097 is an apocalyptic number.

It is an amenable number.

998854097 is a deficient number, since it is larger than the sum of its proper divisors (45317185).

998854097 is a wasteful number, since it uses less digits than its factorization.

998854097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1888239 (or 1888216 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 59.

The square root of 998854097 is about 31604.6530909611. The cubic root of 998854097 is about 999.6178863411.

The spelling of 998854097 in words is "nine hundred ninety-eight million, eight hundred fifty-four thousand, ninety-seven".