898662881 has 2 divisors, whose sum is σ = 898662882. Its totient is φ = 898662880.

The previous prime is 898662839. The next prime is 898662883. The reversal of 898662881 is 188266898.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 640899856 + 257763025 = 25316^2 + 16055^2 .

It is a cyclic number.

It is not a de Polignac number, because 898662881 - 2¹⁰ = 898661857 is a prime.

It is a super-2 number, since 2×898662881² = 1615189947374440322, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 898662883, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (898662883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 449331440 + 449331441.

It is an arithmetic number, because the mean of its divisors is an integer number (449331441).

Almost surely, 2^898662881 is an apocalyptic number.

It is an amenable number.

898662881 is a deficient number, since it is larger than the sum of its proper divisors (1).

898662881 is an equidigital number, since it uses as much as digits as its factorization.

898662881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2654208, while the sum is 56.

The square root of 898662881 is about 29977.7063999233. The cubic root of 898662881 is about 965.0110090290.

The spelling of 898662881 in words is "eight hundred ninety-eight million, six hundred sixty-two thousand, eight hundred eighty-one".