9890967479 has 2 divisors, whose sum is σ = 9890967480. Its totient is φ = 9890967478.

The previous prime is 9890967451. The next prime is 9890967509. The reversal of 9890967479 is 9747690989.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9890967479 - 2²⁰ = 9889918903 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9890967419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4945483739 + 4945483740.

It is an arithmetic number, because the mean of its divisors is an integer number (4945483740).

Almost surely, 2^9890967479 is an apocalyptic number.

9890967479 is a deficient number, since it is larger than the sum of its proper divisors (1).

9890967479 is an equidigital number, since it uses as much as digits as its factorization.

9890967479 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 61725888, while the sum is 68.

The square root of 9890967479 is about 99453.3432268619. The cubic root of 9890967479 is about 2146.5759436307.

The spelling of 9890967479 in words is "nine billion, eight hundred ninety million, nine hundred sixty-seven thousand, four hundred seventy-nine".