9421892071 has 4 divisors (see below), whose sum is σ = 9422291392. Its totient is φ = 9421492752.

The previous prime is 9421892059. The next prime is 9421892089. The reversal of 9421892071 is 1702981249.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 9421892071 - 2⁷ = 9421891943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9421892471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161886 + ... + 212251.

It is an arithmetic number, because the mean of its divisors is an integer number (2355572848).

Almost surely, 2^9421892071 is an apocalyptic number.

9421892071 is a deficient number, since it is larger than the sum of its proper divisors (399321).

9421892071 is a wasteful number, since it uses less digits than its factorization.

9421892071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399320.

The product of its (nonzero) digits is 72576, while the sum is 43.

The square root of 9421892071 is about 97066.4312262483. The cubic root of 9421892071 is about 2112.0914006653.

The spelling of 9421892071 in words is "nine billion, four hundred twenty-one million, eight hundred ninety-two thousand, seventy-one".