9892945971 has 6 divisors (see below), whose sum is σ = 14289810860. Its totient is φ = 6595297308.

The previous prime is 9892945967. The next prime is 9892945991. The reversal of 9892945971 is 1795492989.

9892945971 is a `hidden beast` number, since 98 + 9 + 29 + 459 + 71 = 666.

It is not a de Polignac number, because 9892945971 - 2² = 9892945967 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9892945899 and 9892945908.

It is not an unprimeable number, because it can be changed into a prime (9892945991) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 549608101 + ... + 549608118.

Almost surely, 2^9892945971 is an apocalyptic number.

9892945971 is a deficient number, since it is larger than the sum of its proper divisors (4396864889).

9892945971 is a wasteful number, since it uses less digits than its factorization.

9892945971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1099216225 (or 1099216222 counting only the distinct ones).

The product of its digits is 14696640, while the sum is 63.

The square root of 9892945971 is about 99463.2895645424. The cubic root of 9892945971 is about 2146.7190607457.

The spelling of 9892945971 in words is "nine billion, eight hundred ninety-two million, nine hundred forty-five thousand, nine hundred seventy-one".