109898563 has 2 divisors, whose sum is σ = 109898564. Its totient is φ = 109898562.

The previous prime is 109898501. The next prime is 109898567. The reversal of 109898563 is 365898901.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-109898563 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (109898567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54949281 + 54949282.

It is an arithmetic number, because the mean of its divisors is an integer number (54949282).

Almost surely, 2^109898563 is an apocalyptic number.

109898563 is a deficient number, since it is larger than the sum of its proper divisors (1).

109898563 is an equidigital number, since it uses as much as digits as its factorization.

109898563 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 466560, while the sum is 49.

The square root of 109898563 is about 10483.2515471108. The cubic root of 109898563 is about 478.9946594244.

The spelling of 109898563 in words is "one hundred nine million, eight hundred ninety-eight thousand, five hundred sixty-three".