998883097 has 2 divisors, whose sum is σ = 998883098. Its totient is φ = 998883096.

The previous prime is 998883089. The next prime is 998883107. The reversal of 998883097 is 790388899.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 569108736 + 429774361 = 23856^2 + 20731^2 .

It is a cyclic number.

It is not a de Polignac number, because 998883097 - 2³ = 998883089 is a prime.

It is a super-2 number, since 2×998883097² = 1995534882944622818, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (998883007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499441548 + 499441549.

It is an arithmetic number, because the mean of its divisors is an integer number (499441549).

Almost surely, 2^998883097 is an apocalyptic number.

It is an amenable number.

998883097 is a deficient number, since it is larger than the sum of its proper divisors (1).

998883097 is an equidigital number, since it uses as much as digits as its factorization.

998883097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7838208, while the sum is 61.

The square root of 998883097 is about 31605.1118808335. Note that the first 3 decimals coincide. The cubic root of 998883097 is about 999.6275603059.

The spelling of 998883097 in words is "nine hundred ninety-eight million, eight hundred eighty-three thousand, ninety-seven".