9421944007 has 4 divisors (see below), whose sum is σ = 10767936016. Its totient is φ = 8075952000.

The previous prime is 9421943989. The next prime is 9421944079. The reversal of 9421944007 is 7004491249.

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 9421944007 - 2³¹ = 7274460359 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 (9421942007) 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, 672995994 + ... + 672996007.

It is an arithmetic number, because the mean of its divisors is an integer number (2691984004).

Almost surely, 2^9421944007 is an apocalyptic number.

9421944007 is a deficient number, since it is larger than the sum of its proper divisors (1345992009).

9421944007 is a wasteful number, since it uses less digits than its factorization.

9421944007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1345992008.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 9421944007 is about 97066.6987540011. The cubic root of 9421944007 is about 2112.0952814632.

The spelling of 9421944007 in words is "nine billion, four hundred twenty-one million, nine hundred forty-four thousand, seven".