9898426061 has 2 divisors, whose sum is σ = 9898426062. Its totient is φ = 9898426060.

The previous prime is 9898426049. The next prime is 9898426081. The reversal of 9898426061 is 1606248989.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6066073225 + 3832352836 = 77885^2 + 61906^2 .

It is an emirp because it is prime and its reverse (1606248989) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9898426061 - 2⁶ = 9898425997 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9898425994 and 9898426012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9898426081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4949213030 + 4949213031.

It is an arithmetic number, because the mean of its divisors is an integer number (4949213031).

Almost surely, 2^9898426061 is an apocalyptic number.

It is an amenable number.

9898426061 is a deficient number, since it is larger than the sum of its proper divisors (1).

9898426061 is an equidigital number, since it uses as much as digits as its factorization.

9898426061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1492992, while the sum is 53.

The square root of 9898426061 is about 99490.8340552033. The cubic root of 9898426061 is about 2147.1153714820.

The spelling of 9898426061 in words is "nine billion, eight hundred ninety-eight million, four hundred twenty-six thousand, sixty-one".