9890397263 has 8 divisors (see below), whose sum is σ = 10212994176. Its totient is φ = 9568022400.

The previous prime is 9890397259. The next prime is 9890397329. The reversal of 9890397263 is 3627930989.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9890397263 - 2² = 9890397259 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9890397199 and 9890397208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9890397163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37523 + ... + 145563.

It is an arithmetic number, because the mean of its divisors is an integer number (1276624272).

Almost surely, 2^9890397263 is an apocalyptic number.

9890397263 is a deficient number, since it is larger than the sum of its proper divisors (322596913).

9890397263 is a wasteful number, since it uses less digits than its factorization.

9890397263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111025.

The product of its (nonzero) digits is 4408992, while the sum is 56.

The square root of 9890397263 is about 99450.4764342534. The cubic root of 9890397263 is about 2146.5346926789.

The spelling of 9890397263 in words is "nine billion, eight hundred ninety million, three hundred ninety-seven thousand, two hundred sixty-three".